Fixed “Cannot Insert Object” Error in Excel | Step-by-Step Guide

Summary: The error “cannot insert object” in MS Excel can prevent you from modifying objects in the worksheet. This blog will discuss the primary reasons behind this error and the possible solutions to fix it. You will also learn about a professional Excel repair software that can help fix the error if it has occurred due to corruption in Excel file.

Many users have reported encountering the “cannot insert object” error while adding/embedding objects into the Excel file. It usually occurs when using Object Linking and Embedding (OLE) to add content (PDF, Microsoft documents) from external applications to worksheet. The error can also occur when using ActiveX control in Excel. Below, we’ll explain why you cannot insert object into Excel sheet and how to troubleshoot the issue.

Why the “Cannot Insert Object” Error Occurs?

• Macro Settings can prevent the insertion of objects into a workbook.
• The Excel file in which you are trying to add an element is corrupted.
• The object (you are inserting into the workbook) is damaged.
• Object size limitations.
• System’s insufficient memory might prevent new objects’ addition.
• Incompatible Excel file format.
• Add-ins controls are disabled.
• Incompatible or faulty Add-ins.
• Issue with Security Settings.

Methods to Fix the “Cannot Insert Object” Error in Excel

You may encounter the “Cannot insert object” error when trying to add an element stored on a network. It can occur due to issues with the file link, such as incorrect file location. In such a case, you can check the link by selecting the link to file option from the Insert tab.

Sometimes, the error can occur if the file in which you are trying to insert the object is locked and password-protected. In this case, you can unprotect the Excel file . If the issue still persists, then you can follow the below methods.

Method 1: Check and Change Restricted Security Settings

Excel provides security settings to protect your workbook. Sometimes, these settings can prevent inserting objects in the file. You can change the security settings to allow Excel to insert objects. To do so, follow these steps:

• Open your Excel application.
• Locate the File and then click Options.
• In Excel Options, click Trust Center.

• Click Trust Center Settings.
• In the Trust Center Settings window, select Protected View from the left pane.

• Under Protected View, unselect the below three options:
• Enable Protected View for files originating from the internet.
• Enable Protected View for files located in potentially unsafe locations.
• Enable Protected View for Outlook attachments.

• Click OK.
• Once you’re done with this, click on Macro Settings in the Trust Center window.
• Under Macro Settings, make sure “Disable all macros without notification” is not selected. If it is selected, then unselect it. After that, click OK.

• Restart Excel to apply the changes.

Method 2: Uninstall Microsoft Office Updates

You can also encounter the “Cannot insert object” error in Excel after installing MS Office updates. It might be due to the issues with the installed updates. To fix this, you can uninstall the recently installed Office updates. To uninstall the Office updates, follow these steps:

• Go to the system’s Control Panel.
• Click Programs and then click Program and Features.
• Search for “View Installed Updates” and click on the desired Office updates.
• Right-click on it and then click Uninstall.
• Follow the uninstallation steps on the screen.
• Once the process is complete, restart the system.

Method 3: Check Memory Usage

The “Cannot insert object” issue can also occur if your system is low on memory. You can check and close unnecessary processes and applications running in the background to free up memory. To do so, follow these steps:

• Press CTRL + ALT + DEL on the keyboard and click Task Manager.
• Click on the Processes tab and search for any unnecessary processes.
• Right-click on the process and then select End Task.
• Restart Excel to see if the issue is fixed.

Method 4: Check Excel File Size

If your Excel file size exceeds the prescribed limit, it can also lead to the “Cannot insert Excel object” error. So, check the Excel file size. You can reduce the file size by removing unnecessary objects, such as formulas or images.

Method 5: Check and Change Excel ActiveX Settings

You can get the “Excel cannot insert object” error if your Excel file contains macros, controls, and other interactive buttons. It usually occurs if the ActiveX Controls option is disabled. You can check and change the ActiveX Settings to fix the issue. Here are the steps:

• Open your Excel application.
• Navigate to File and then click Options.
• In Excel Options, click the Trust Center tab.
• In the Trust Center Settings, click ActiveX Settings.
• Under ActiveX Settings, make sure the “Enable all controls without restrictions and without prompting” option is selected.

• If the option is not selected, then select it and click OK.
• Restart the Excel and check if the error is fixed or not.

Method 6: Repair the Excel Workbook

The “Cannot insert object” error can occur if the object you are trying to insert is corrupted or the file in which you are inserting the object is damaged. If the issue has occurred due to a corrupted Excel file, then you can repair the file using the Open and Repair utility in MS Excel. To use this Microsoft-inbuilt utility, follow these steps:

• In the Excel application, go to the File tab and then click Open.
• Click Browse to choose the affected file.
• The Open dialog box is displayed. Click on the corrupted file.
• Click on the arrow next to the Open button and then click Open and Repair.
• Click on Repair.

• After repair, a message will appear (as shown in the below figure).

• Click Close.

If the Open and Repair utility fails to fix the issue, then try a professional Excel Repair software, like Stellar Repair for Excel. It is designed to repair severely corrupted Excel files. It can restore all the Excel file objects, such as tables, charts, formulas, etc. It helps fix all types of corruption related errors. The software is compatible with all versions of Excel.

Conclusion

You might encounter the “Cannot insert object” error when embedding or inserting objects in Excel. In this post, we have discussed the possible solutions to fix this error. We have also mentioned an Excel repair software that can help to easily repair the corrupted Excel file and recover all the data. You can download the Stellar Repair for Excel’s free demo version to preview the recoverable objects of the corrupted Excel file.

[Fixed] Excel Cannot Open the File Because the File Format or File Extension Is Not Valid

When opening an older version of an Excel file in a newer version, you may encounter the “Excel cannot open the file because the extension is not valid” error. This happens if you have accidentally renamed the file with a different file format or an incorrect file extension. Also, you may get the ‘Excel cannot open the file’ error if the file has become unreadable or corrupted.

This is how the complete Excel error message looks like:

“Excel cannot open the file filename.xlsx because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file.”

Check out this video for a quick demonstration of how to fix “Excel Cannot Open the File Because the File Format or File Extension Is Not Valid”

How to Fix the ‘Excel Cannot Open the File Because the File Format or Extension Is Not Valid’ Error?

Try any of these workarounds to fix the error and regain access to your Excel file data:

Workaround 1 – Change the Default File Format

By default, an Excel file is saved in .xlsx or .xls file format. Trying to open the file with a different or incorrect extension may cause the ‘Excel cannot open the file because the extension is not valid’ error. To fix the error, try changing the Excel default file format by following these steps:

Note: Take a backup of the Excel file that you cannot open and try the steps on the backup copy.

• In Excel 2010 and newer versions, click on the File menu.

Note: For Excel 2007 and earlier versions, click on the Office button.

• On the left panel, click on Options. 
• In ‘Excel Options’ window, under Save workbooks section, click on the Save files in this file format: drop-down. Select a file format (i.e., the one supported by your Excel version).

• Click OK.

Check if you can open your Excel file. If not, try the next workaround.

Workaround 2 – Edit the Excel File Permissions

You may receive the ‘Excel file format or file extension is not valid’ error if you lack sufficient permissions to open the file. Usually this happens when you try to open an Excel file received from some other user. Follow these steps to change the file permissions and see if it fixes the problem:

• Right-click on the file that won’t open and click Properties.
• In the file properties dialog box, click the Security tab and then hit the Edit button.

• When the file’s permissions dialog box appears, click on the Add button.

• Click on the Advanced button from the ‘Select Users or Groups’ window.

• Select Find Now. A list of all users and groups will get displayed in a search results box. Choose Everyone group from the list and hit OK.

• You can see the ‘Everyone’ group in the ‘Enter the object names to select’ textbox. Click OK once again to return to the file’s permission dialog box.

• Click Everyone from the Group or user names: box and check all the checkboxes under Allow.

• Click on Apply and then OK.

Now try to open the Excel file. If you’re still getting the Excel file cannot open error, use the following workaround.

Workaround 3 – Recover Unsaved Workbook

If the ‘Excel file extension not valid error’ occurs when attempting to open an unsaved workbook, do the following to recover the unsaved workbook:

• In Excel, click File. 
• From the Info screen, under Manage Versions, click Recover Unsaved Workbooks.

Excel will list any unsaved files. Try opening the file and save it. If this doesn’t work, skip to the next workaround.

Workaround 4 – Repair the Workbook

If none of the above workarounds has worked for you, chances are that the Excel file has become corrupted. Try to repair the file using the Excel inbuilt ‘Open and Repair’ utility by following these steps:

• In your Excel application, click on File > Open.
• In the ‘Open’ dialog box that pops-up, select the Excel file you want to repair and click the arrow next to the Open button.

• From the dropdown list, select Open and Repair.

• Excel will ask you to attempt to repair the file or extract data from it. Click Repair to retrieve maximum data. If the Repair option fails, click on Extract Data to recover the data without formulas and values.

If the ‘Open and Repair’ utility doesn’t help fix the corrupted file and/or recover the data, use an Excel repair tool  such as Stellar Repair for Excel to regain access to your file and its data.  

Stellar Repair for Excel software can help repair severely corrupted XLS and XLSX files. Also, it helps recover all the file components, including tables, pivot tables, cell comments, charts, chart sheets, images, formulas, etc., without impacting the original structure of the Excel file. 

To learn how the software works, read this: How to repair corrupt Excel file using Stellar Repair for Excel?

Conclusion

You may encounter the error ‘Excel cannot open the file because the extension is not valid’ when opening a workbook with a different file format or an incorrect file extension. Also, the error may occur if the Excel file has turned corrupt. This article has covered some of the most effective workarounds to resolve the error. But if nothing works, you can try to repair the Excel file and retrieve its data using the Stellar Repair for Excel software.

Filter Not Working Error in Excel [Fix 2024]

Summary: The filter is not working issue in Excel can occur due to several reasons, like blank rows, hidden rows, merged cells, corrupted data, etc. In this post, we will mention the reasons why the filter is not working correctly in Excel and several fixes to resolve the issue. We will also mention an advanced Excel repair tool to repair the Excel file if corruption in file is the cause of the issue.

You can use the Filter function in Excel to filter data in large-sized Excel files quickly. While using Excel filters, sometimes, you face a situation where the filter is disabled or may fail to function properly.

The Excel filter usually fails to work if you have not selected the complete and correct range of data. Let’s learn more about the “Sort and Filter not working in Excel” issue and look at the possible methods to fix it.

Why the Filter is not Working in Excel?

You can face the “filter is not working” issue if you are applying the filter on a protected worksheet or trying to find the data from a hidden row. Besides this, there could be many other reasons contributing to this issue, such as:

• The data you are trying to filter is in merged cells.
• The Excel file automatically selected the data up to the first empty cell, excluding the remaining rows.
• Grouped sheets in Excel file.
• Blank row in the Excel sheet.
• You are trying to apply a filter on an invalid data range.
• The workbooks in which you’re facing the filter issues are corrupted.
• You are specifying incorrect criteria in the filter columns.

Solutions to Resolve the Filter is not Working Issue in Excel

There might be two scenarios: the Excel filter option is disabled/grayed out or the filters fail to function properly. You can follow the given troubleshooting solutions to resolve the issue based on the scenario you’re facing.

Scenario 1 – Filter Option is Disabled or Grayed Out

Method 1: Check and Un-group the Worksheet

When you apply filters to a single sheet in a grouped set, Excel disables the filter option in other sheets within the group. You can check the grouped sheets and try ungrouping them to enable the filter option. Here’s how to do so:

• In the Excel file, go to the Group section.

• Right-click on the Ungroup Sheets.

Alternatively, you can press the Shift + Alt + Left keys to ungroup the sheets.

Method 2: Unprotect Worksheet

The “disabled Excel filter” issue can also occur if your worksheet is protected. You can unprotect the worksheet to enable the filter option. To do so, go to the Review tab and then select Unprotect Sheet.

Method 3: Check and Uninstall Excel Add-ins

Sometimes, the Excel filter gets disabled due to faulty or corrupted Excel add-ins. You can run the Excel in Safe mode to check whether the issue has occurred due to add-ins. To do this, type excel /safe in the Run window and click OK.

In safe mode, if you see the filter option, it indicates some problematic Excel add-ins were causing the issue. In such a case, you can check and uninstall the faulty Excel add-ins to fix the issue.

Scenario 2 – Filter is not Working

Method 1: Try Clearing Filters

Sometimes, the Excel filter fails to work correctly if some filters from the previous sessions are still active. In such a case, you can clear the applied filters. Follow the below steps:

• In Excel file, click Sort & Filter option.
• Select clear.

Method 2: Select Entire Data

The filter not working issue in Excel can occur when the range selected for filtering is incomplete or incorrect. You need to make sure that you’ve selected the entire data range in Excel. You can use the Ctrl+A keys to select the entire content in the worksheet.

Method 3: Check and Delete Blank Cells from the Table’s Columns

When you apply a filter to the data, Excel expects data to be in a continuous range. Excel filters do not consider the blank cells, thereby resulting in incorrect functioning of the filter. To resolve this issue, check and delete all blank cells. In case your Excel file is too large to delete the blank cells, then you can add a “Serial number” row as an alternative. Adding serial number row creates a data continuity, thus helping in fixing the filter-related issue.

Method 4: Unhide Hidden Rows and Columns

Hidden rows or columns in worksheets can also affect the filter functionality. You can check and unhide rows/columns to troubleshoot the issue. Here is how to do so:

• In the affected Excel file, go to Home.
• Click on Format > Hide & Unhide.

• Click Unhide Rows or Unhide Columns (as required).

Method 5: Unmerge Cells

You can experience the filter in Excel is not working issue if you are using the filter to extract data from merged cells. Ensure to unmerge the “merged cells” before applying a filter in Excel. Follow the below steps to unmerge the merged cells in Excel:

• Navigate to the Home option.
• In the toolbar, select the Merge & Center option.
• Click Unmerge Cells.

Method 6: Repair the Workbook

Sometimes, the Filter Not Working in Excel issue can occur due to inconsistencies in file structure. If these issues occurred due to corruption in the worksheet, you can repair it using the Open and Repair tool. It is an in-built tool in Excel that is used to repair corrupted Excel files. Here are the steps to use this tool:

• In the Excel application, navigate to the File option.
• Click Open and then click Browse to choose the Excel file.
• In the Open dialog box, click the problematic Excel file.
• Click the arrow next to the Open option and select Open and Repair.
• Click Repair to recover as much data as possible.
• The application prompts a message after the repair process is complete. Click Close.

In most cases, the Open and Repair tool can easily fix corruption issues in the Excel file. However, for any reason, if the open and repair tool doesn’t work you can consider repairing the file using a professional Excel Repair tool. Stellar Repair for Excel is one such advanced and secure tool to repair Excel files. With this tool’s powerful scanning capabilities, you can repair highly corrupted Excel files and recover all their objects with complete integrity. The tool is compatible with all Windows editions, including the latest Windows 11.

Closure

Several reasons are associated with the filter not working issue in Excel. The filter option may not work as expected if you have not selected the complete and correct range of data or for many other reasons. You can follow the troubleshooting methods discussed above to fix the issue. If the filter fails to work due to corruption in the workbook, then try Stellar Repair for Excel . It is an advanced tool that can even repair severely damaged files. It also helps to recover all the data from corrupted files without changing the original formatting. You can check the tool’s functionality by downloading its demo version. It allows you to preview all the repairable objects in the corrupted Excel file.

Excel File Corruption Warnings and Solutions

Summary: Many users reported error messages they receive when they try to save or open an Excel file. In this blog, you will learn about the warning messages that indicate your Excel file is corrupt and possible solutions to repair it. It also outlines the Stellar Repair for Excel to repair corrupt Excel files.

Excel users often report about receiving warning messages suggesting corruption in the workbook. This usually happens while opening an Excel file, ‘.xls’ or ‘.xlsx’ file created by earlier versions, or attempting to create a copy of the workbook.

Excel file corruption may occur due to several reasons including (but not limited to) virus infection, sudden system shutdown during write operation, and leaving excel file open on the shared network.

Occurrences of Excel File Corruption Warnings

Occurrence 1 – “Excel found unreadable content in . Do you want to recover the contents of this workbook? If you trust the source of this workbook, click Yes”.

On clicking ‘Yes’, you will receive the following error:

 “The file is corrupt and cannot be opened”.

Occurrence 2 – “Excel cannot open the file , because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file”.

Besides the warning messages outlined above, there are a few other tell-tale signs of Excel file corruption such as:

• Excel crashes or freezes, preventing you from accessing the workbook and information stored in it.
• Unexpected errors occur during the save operation listed as below:
  • “An unexpected error has occurred. AutoRecover has been disabled for this session of Excel”.
  • “Errors were detected while saving ”.

Solutions to Fix Excel File Corruption Issue

Follow the below-listed solutions to deal with corruption issues in Excel:

NOTE: If you encountered problem opening Excel files after upgrading to latest Windows Operating System (OS) and Office program, try updating your Office as well as Windows OS to latest patches provided on the Microsoft site. Microsoft frequently releases Office and Windows OS patches to help users’ correct known errors. Check if you can open the corrupt workbook after installing the update.

Solution 1 – Use Open and Repair Utility

Excel comes with a built-in recovery mechanism. It automatically starts ‘File Recovery Mode’ when a user opens a corrupt workbook, and attempts to open and repair the workbook. Sometimes, the recovery mode might not start automatically. In that case, you will need to repair the Excel file manually by using ‘Open and Repair ’ utility.

Steps to use Microsoft’s built-in repair utility are as follows:

Step 1: Select File > Open.

Step 2: Click the folder containing the corrupt workbook, and then click Browse.

Step 3: In the Open window, select the corrupt workbook.

Step 4: Next, click the arrow in the Open button, and then click Open and Repair.

Step 5: In the window that appears, click Repair.

If  ‘Open and Repair’ doesn’t work in excel , select Extract Data to extract formulas and values from the corrupt workbook.

NOTE: If you need a quick solution to salvage your data, use an Excel file repair tool.

Or else, attempt the following solutions to deal with corruption in Excel file .

Solution 2 – Uninstall and Re-install Office Installation

NOTE: Make sure to create a backup of your Excel file before uninstalling and re-installing your Office application.

Download the Office uninstall support tool to remove the application.

You can read: Simple Ways to Open Corrupt Excel file Without any Backup

To reinstall Microsoft Office, follow these steps:

NOTE: Before proceeding with Office re-installation process, make sure that you have license keys ready.

Step 1: Open the Microsoft Office site.

Step 2: Select Sign in.

NOTE: You may skip this step if you’re already signed in.

Step 3: After signing in, from the Office sign-in page, click Install/Install Office

Your Office application will get re-installed. Now open the backed-up Excel file and see if the problem is fixed.

Solution 3 – Move Excel File to a Different Location

Often moving a corrupt Excel file to a different location can help solve the corruption problem. Here’s how:

Step 1: Open the corrupt Excel file by navigating to the following path:

C:\Users\User_Name\AppData\Roaming\Microsoft\Excel

NOTE: Make sure to replace User_Name with your user name. If you are unable to find the Excel file, you will have to search for the file manually in Program Files (x86).

Step 2:  Open the Excel folder, and move the corrupt file to some other location.

Step 3: Delete the files from the Excel folder.

Now try opening the Excel file you have moved and see if the issue is resolved.

Solution 4 – Use Excel File Repair Software

If none of the above solutions works for you, use Stellar Repair for Excel. It is a specialized Excel file repair software that helps repair corrupt Excel file and recover workbook data in its original state.

Essentially, the software helps rebuild the corrupt file to restore every single object in the file. It can recover objects including user-defined charts, conditional formatting rules, formatting of the charts, properties of worksheet, engineering formulas, etc.

Steps to use Stellar Repair for Excel are as follows:

Step 1: Download, install and launch Stellar Repair for Excel software.

Step 2: In Select File window, click Browse to select the file you want to repair.

NOTE: If you are unaware of the Excel file location, click ‘Search’ in the Select File window to find the file.

Step 3: Once the files are selected, click Repair to initiate the repair process.

Step 4: Preview the repaired file and select all or specific files you want to save.

Step 5: Click Save File on Home menu.

Step 6: In Save File window, choose ‘Default Location’ or ‘Select New Folder’ to select the location where you wish to save the file. Click OK.

The selected files will be saved at the specified location.

Conclusion

You may experience Excel file corruption warning messages while opening or saving an Excel file. The file may become corrupt due to malware infection, sudden system shutdown, and forgetting to close workbook on a shared network. This post outlined occurrences of Excel file corruption warnings, and also described solutions to fix the issue.

You may try using Microsoft’s built-in ‘Open and Repair’ tool to repair corrupt workbook and recover data from it. If this solution doesn’t work, proceed with uninstalling and re-installing the Office application. Another solution is to move corrupt files to another location. But if the problem still persists, use Stellar Repair for Excel software to repair single or multiple Excel (.xls or .xlsx) files and restore data.

How to Fix Excel Formulas Not Working Properly | Step-by-Step Guide

Summary: Excel formulas sometimes fail to function correctly and even return an error. This article explains what you might be doing wrong that prevents Excel formulas from working properly and solutions to resolve the issue. If your formulas have disappeared from the Excel spreadsheet and you are having trouble recovering them, you can use an Excel repair tool to recover the formulas.

When working with Excel formulas, situations may arise when the formula doesn’t calculate or update automatically. Or, you may receive errors by clicking on a formula.

Problems Causing the ‘Excel Formulas not Working Properly’ Issue and Solutions

Let’s check out the possible reasons that cause Excel formulas to work properly and solutions to resolve the issue.

Problem 1 – Switching Automatic to Manual Calculation Mode

Automatic and manual are the two modes of calculation in Microsoft Excel.

By default, Excel is set to automatic calculation mode. Everything is recalculated automatically when any changes are made in a worksheet in this mode. You may switch from automatic to manual mode to disable the recalculation of formulas, particularly when working with a large Excel file with too many formulas.

Excel will not calculate automatically when set to manual calculation mode. And this may make you think that the Excel formula is not working properly.

Solution – Change Calculation Mode from Manual to Automatic

To do so, perform these steps:

• Click on the column with problematic formulas.
• Go to the Formulas tab, click the Calculation Options drop-down, and select Automatic.

Problem 2 – Missing or Mismatched Parentheses

It’s easy to miss or incorrectly place parentheses or include extra parentheses in a complex formula. If a parenthesis is missing or mismatched and you click Enter after entering a formula, Excel displays a message window suggesting to fix the issue (refer to the screenshot below).

Clicking ‘Yes’ might help fix the issue. But Excel might not fix the parentheses properly, as it tends to add the missing parentheses at the end of a formula which won’t always be the case.

Solution – Check for Visual Cues When Typing or Editing a Formula with Parentheses

When typing a formula or editing one, Excel provides visual cues to determine if there’s an issue with the parentheses inserted in a formula. Checking for these visual cues can help you fix missing/mismatched parentheses.

• Excel helps identify parenthesis pairs by highlighting them in different colors. For instance, the pair of parenthesis outside is black.
• Excel does not make the opening parentheses bold. So, if you’ve inserted the last closing parentheses in a formula, you can determine if your parentheses are mismatched.
• Excel helps identify parentheses pairs by highlighting and formatting them with the same color once you cross over them.

Problem 3 – Formatting Cells in an Excel Formula

When adding a number in an Excel formula, don’t add any decimal separator or special characters like $ or €. You may use a comma to separate a function’s argument in an Excel formula or use a currency sign like $ or € as part of cell references. Formatting the numbers may prevent the formula from functioning correctly.

Solution – Use Format Cells Option for Formatting

Use Format Cells instead of using a comma or currency signs for formatting a number in the formula. For instance, rather than entering a value of $10,000 in your formula, insert 10000, and click the ‘Ctrl+1’ keys together to open the Format Cells dialog box.

Problem 4 – Formatting Numbers as Text

Numbers are displayed as left-aligned in a sheet in a worksheet, and text formatted numbers are right-aligned in cells. Excel considers numbers formatted as text to be text strings. Thus, it leaves those numbers out of calculations. As a result, a formula won’t work as intended. For example, in the following screenshot, you can see that the SUM formula works correctly for normal numbers. But, when the SUM formula is applied to numbers formatted as text, the formula doesn’t return the correct value.

Sometimes, you may also see an apostrophe in the cells or green triangles in the top-left corner of all the cells when numbers in those cells are formatted as Text.

Solution – Do Not Format Numbers as Text

To fix the issue, do the following:

• Select the cells with numbers stored as text, right-click on them, and click Format Cells.
• From the Format Cells window, click on Number and then press OK.

Problem 5 – Double Quotes to Enclose Numbers

Avoid enclosing numbers in a formula in double-quotes, as the numbers are interpreted as a string value.

Meaning if you enter a formula like =IF(A1>B1, “1”), Excel will consider the output one as a string and not a number. So, you won’t be able to use 1’s in calculations.

Solution – Don’t Enclose Numbers in Double Quotes

Remove any double quotes around a number in your formula unless you want that number to be treated as text. For example, you can write the formula mentioned above as “1” =IF(A1>B1, 1).

Problem 6 – Extra Space at Beginning of the Formula

When entering a formula, you may end up adding an extra space before the equal (=) sign. You may also add an apostrophe (‘) in the formula at times. As a result, the calculation won’t be performed and may return an error. This usually happens when you use a formula copied from the web.

Solution – Remove Extra Space from the Formula

The fix to this issue is pretty simple. You need to look for extra space before the equal sign and remove it. Also, ensure there is an additional apostrophe added in the formula.

Other Things to Consider to Fix the ‘Excel Formulas not Working Properly’ Issue

• If your Excel formula is not showing the result as intended, see this blog .
• When you refer to other worksheets with spaces or any non-alphabetical character in their names, enclose the names in ‘single quotation marks’. For example, an external 5reference to cell A2 in a sheet named Data enclose the name in single quotes: ‘Data’!A1.
• You may see the formula instead of the result if you have accidentally clicked the ‘Show Formulas’ option. So, click on the problematic cell, click on the Formula tab, and then click Show Formulas.
• If you’re getting an error “Excel found a problem with one or more formula references in this worksheet”, find solutions to fix the error here .

Conclusion

This blog discussed some problems you might make causing an Excel formula to stop working properly. Read about these common problems and solutions to fix them. If a problem doesn’t apply in your case, move to the next one. If you cannot retrieve formulas in your Excel sheet, using an Excel file repair tool like Stellar Repair for Excel can help you restore all the formulas. It does so by repairing the Excel file (XLS/XLSX) and recovering all the components, including formulas.

How Do I Repair and Restore Excel File?

When an Excel file turns corrupt, the file might become inaccessible or you might receive errors. You may encounter errors, such as ‘the file is corrupt and cannot be opened,’ ‘Excel found unreadable content in “filename>”,’ ‘Excel cannot open “filename” because the file format or extension is not valid,’ etc.

Common Reasons for Excel File Corruption

There are several reasons that can turn the file corrupt. The most common reason is a damaged hard drive. Other factors that can cause corruption in an Excel file are as follows:

• System crash or abrupt shutdown of the system while the file is still open
• Viruses infecting the file with malicious code
• Bug in the operating system
• Bad sectors on the drive where the file is stored
• Large spreadsheets with formulas and other components

Whatever be the reason, if your business is dependent on an Excel file, corruption in the file could hamper your business continuity. Also, you may lose crucial data. In such a situation, you could try to repair the file.

Before We Begin

It is important to identify the root cause behind Excel file corruption. If the problem has occurred due to a faulty hard disk drive, contact your hardware vendor to get it fixed. Also, move the file to another local drive and check if it opens. If nothing works, proceed with the methods discussed below to repair and restore the file.

Methods to Repair and Restore Excel File

Try the following methods to fix corruption in an Excel file and restore it.

Method 1 – Use the Built-in ‘Open and Repair’ Tool

You can use the Excel built-in Open and Repair utility to repair the corrupt file. Follow these steps:

• Open your Excel application and click on Blank workbook.

• On the blank workbook screen, click on the File tab.

• Click Open > Computer > Browse.

• Select the file you want to repair and then click on Open and Repair from the Open dropdown box.

• Click Repair to fix corruption in the Excel file and recover maximum data.

• If you get the following error message, click Yes to open the file.

• If clicking Yes opens the file with garbage entries (see the image below), perform Step 1 – 5 and click Extract Data. This will only help you recover data without formulas and values.

Note: You may also try to recover the data from a corrupted workbook by using the methods suggested by Microsoft .

A better way to repair and restore an Excel file with complete data is to use a specialized Excel file repair tool .

Method 2 – Use Excel File Repair Tool

Stellar Repair for Excel is a powerful tool designed to help users fix corrupted .xls or .xlsx files without any technical assistance. Also, the tool recovers all the components from a corrupted workbook, including tables, pivot tables, cell values, formulas, charts, images, etc. You can preview the repaired file and its contents by downloading the free demo version from the link below. It is a useful feature that allows the user to validate the data before saving it.

[

](https://tools.techidaily.com/stellardata-recovery/repaire-for-excel/ “Free Download For Windows”)

Here’s the step-by-step instructions to repair a corrupt Excel file using the software:

• Run the software. The software main interface opens with an instruction to add some add-ins if you’ve engineering formulas in the file you want to repair.

• Click OK to proceed.

• Select the file you wish to repair by using the Browse option.

Note: If you’re not aware of the file location, choose the ‘Search’ option to locate the file.

• A screen showing progress of the Excel file repair process is displayed.

• Preview of the repaired Excel file and its recoverable data is displayed.

• After verifying the data, click on the Save File button on the File menu to save the repaired file.

• Select the location where you wish to save the repaired file on the Save File window and then click OK.

A confirmation message will pop-up after completion of the repair process. You can now try to open the file in your Excel program.

End Note

Even if you’re taking preventive measures, you might still experience corruption in an Excel file. So, it’s crucial to take regular backups of your workbooks. For this, ensure that the ‘Always create backup’ option is enabled in Excel. You can find it in General Options by clicking on the Tools button in the Save As dialog box. Enabling it will ensure that the Excel backup file is updated with the changes made in a spreadsheet.

Additionally, ensure that the Excel ‘AutoRecover’ feature is set to save a version of your Excel file after every 10 minutes. You can increase or shorten the interval as per your requirement.

Top 5 Ways to Fix Excel File Not Opening Error

Summary: MS Excel users sometimes face issues while using the MS Excel application. One such issue is the Excel file not opening error. In this post, we’ve mentioned the reasons that may result in this error and the ways to resolve it. Also, you’ll find about an Excel repair software that can help you repair corrupt Excel files.

Several Microsoft Excel users have reported encountering the ‘Excel file not opening’ error when opening their Excel file. There are several reasons that may cause this error. In this post, we’ll be discussing the reasons that may lead to the ‘Excel file not opening’ error and the top 5 ways to fix this error.

Why Does the ‘Excel File Not Opening’ Error Appear?

Following are some possible causes that may result in the ‘Excel file not opening’ error:

1. There may be a problem with an add-in that is preventing you from opening the Excel files.
2. There’s a chance that your Excel application is faulty.
3. Your Excel program is unable to communicate with other programs or the operating system.
4. The file association might have been broken. This is a common problem faced by users who have upgraded their Excel application or operating system.
5. The file you’re trying to open is corrupted.

5 Ways to Fix Excel File Not Opening Error

Let’s explore the ways to resolve the Excel file not opening error:

1. Uncheck the Ignore DDE Checkbox

Dynamic Data Exchange (DDE)allows Excel to communicate with other programs. The Excel error may occur due to incorrect DDE settings. You need to ensure that the correct DDE configuration is enabled. Follow the steps provided below:

• Launch your MS Excel file.
• Go to File > Options.

• Now click on Advanced.

• Further, find the General option on the screen.

• Uncheck the option **‘Ignore other applications that use Dynamic Data Exchange (DDE)**’.
• Click OK to save the changes.

2. Reset Excel File Associations

When you launch your Excel file, the file association ensures that the Excel application is used to open the file. You can try to reset these associations and see if Excel opens after this. Proceed with the following steps to do so:

• Navigate to Start Menu and launch Control Panel.
• Now, navigate to Programs > Default Programs > Set Your Default Programs.

• A new window will open. Herein, find the Excel program in the list and select it. Now, select the option ‘Choose defaults for this program’. Click OK.

• A new window for ‘Set Program Associations’ will open.
• Check the box against the ‘Select All’ option.
• Further, click Save to reset the Excel File Associations settings.

3. Disable Add-Ins

Many people install third-party add-ins to enhance the application’s functionality. Sometimes, these add-ins can create an issue. Follow the below-mentioned steps to disable the problem creating add-ins:

• Launch MS Excel application.
• Navigate to File > Options > Add-ins.

• In the window that opens, go to the Manage option at the bottom.
• Herein, select the COM Add-ins option from the dropdown list. Click Go.

• In the COM Add-ins window, uncheck all the boxes to disable the add-ins. Click OK.

4. Repair MS Office Program

Sometimes the issue is not with your Excel file. Instead, the reason for the error can be a corrupt MS Office application. You can repair the program to fix the Excel file not opening error. Here are the steps:

• Press the Windows + R keys to launch the ‘Run’ dialog box.

• Enter the text ‘appwiz.cpl’ to launch the program and features window.

• Find the MS Office program in the list of applications.

• Right-click on it and select Change.

• In the new window, select the Quick Repair radio button. Click Repair.

• Follow the on-screen instructions to repair the Office application. Once the repair process is completed, you can try opening the Excel file to see if the problem is resolved.

5. Disable Hardware Graphics Acceleration

The hardware graphics acceleration assists in the system’s better performance, especially when you use MS Office applications, like MS Excel or Word. Sometimes, this causes the Excel file not opening issue. You can disable this option to try to resolve the issue. Here are the steps:

• Launch your MS Excel application.
• Navigate to File > Options > Advanced.
• Herein, go to the Display option.
• Uncheck the Disable hardware graphics acceleration checkbox. Click OK.

What If These Solutions Do Not Work?

If you have applied all the methods mentioned above and still cannot open your Excel file, there are chances that your file is corrupted. You can use a specialized Excel repair tool , such as Stellar Repair for Excel to repair the corrupted Excel file. This software has powerful algorithms that can scan and repair even severely corrupt Excel files, without any file size limitation. After repairing the file, it restores all the data, including tables, charts, rules, etc. to a new Excel, with 100% integrity.

To know how the software works, see the video below:

Conclusion

Before you proceed with resolving the Excel file not opening error, try to find out the root cause of this error. If you know the real reason, you can try the method right away. If the reason for the error is corruption in the Excel file, the best option is to repair the file using a professional Excel repair tool, such as Stellar Repair for Excel .