How to Fix Excel Found Unreadable Content in XLSX (8 Ways)

The “Excel found unreadable content in ‘filename.xlsx’.” is a rare error message that users experience when trying to open the Excel 2010/2007. When this error occurs, it is really difficult to access the data of that Excel document. Thus, if you’re also struggling with the same issue & looking for how to fix Excel found unreadable content in XLSX, don’t panic. As this write-up covers the best fixes that can help you to troubleshoot this error and get easy access to your Excel file data.

Quick Fixes:

• Open Your Excel File With Admin Privileges
• Make the Excel File ‘Read-only’
• Try To Open Your File In Excel 2003
• Move Excel File To A New Folder
• Install Visual Basic Component
• Unlock your Blocked Excel File
• Disabling Hardware acceleration
• Repair Corrupt Xls/Xlsx File

What Does Excel Found Unreadable Content Error Mean?

Here is the complete declaration of the error message:

“Excel found unreadable content in ‘[filename].xlsx’. Do you want to recover the contents of this workbook? If you trust the source of this workbook, click Yes.”

If you press the “yes” option, then you may further face any of these two error messages:

Scenario 1:

“Excel was able to open the file by repairing or removing the unreadable content. Excel recovered your formulas and cell values, but some data may have been lost. Click to view log file listing repairs errorxxx.xml.”

The above message clearly indicates that your Excel workbook will get open, but chances are high that your images or data inconsistency may happen.

Scenario 2:

“The file is corrupt and cannot be opened”.

After getting this error message your Excel file denies to get open.

Why Does ‘Excel Unreadable Content’ Error Occurs?

There are a wide variety of reasons to trigger the “Excel Unreadable Content in filename.xlsx” error. Consequently, it is important to know the exact reason behind this error as this will help you in approaching the right solution.

So, let’s find out all its factors:

Antivirus & Malware: 

Viruses are the major factors that can damage your Excel workbook and shows this error.

Corrupted Excel File:

Entire Excel file corruption or in certain parts (like Pivot Tables, Styles, Formulas, etc.) can lead to this issue.

Excel Program Issues: 

In case, if your MS Excel file reader application is corrupt or outdated, it can also result in Excel unreadable content error when opening the file.

Encrypted Files: 

Encryption of some algorithms can make it intolerable to read the content of your Excel file and shows this error.

Missing Components: 

Incomplete or improper installation can also be the reason behind this error. In such cases, some important components like the visual basic of Excel go missing and cause this Excel error.

How to Fix Excel Found Unreadable Content In XLSX Error?

Check out the detailed steps to perform these fixes…..!

Fix 1- Open Your Excel File With Admin Privileges

Before trying any complicated fixes, run your Excel application with administrator privileges. As mostly it is seen that such type of Excel error commonly encountered on the PC in which its active user account won’t have admin privileges’.

Here is the complete step to get ensure that Excel has got admin privileges before opening the file:

• Make a right-click over the Excel launcher and then select Run as Administrator option.

• Now on your screen you will get dialog box of UAC (User Account Control) where you need to press “Yes” option to allow administrative privileges.

• Now when the Excel gets opened with admin privileges. After that try to run that particular file which is showing an ‘excel found unreadable content in .xlsx’ error. If still you are getting the same error message then try the following workarounds.

Also Read: Fix Excel “This File Is Not in a Recognizable Format” Error

Fix 2-  Make The Excel File ‘Read-only’

Try opening your ‘.xlsx’ file in ‘read-only’ format. Here is how to perform this task:

• On your Excel window tap to the ‘File’ tab.
• Choose the ‘Save’ option for saving a new document or ‘Save As’ for an already saved document.

• In the opened dialog box of ‘Save As’ you have to tap Tools > General Options.

• In the opened window of General Options, put a check mark across the ‘Read-only recommended’ option and hit OK button. This will make your Excel document read-only.

• Open a new ‘.xlsx’ file and then copy entire data from corrupt Excel file to this new one.
• At last, save your Excel file and once more try opening it.

Fix 3- Try To Open Your File In Excel 2003

The version mismatch also leads to Excel found unreadable content error.

To fix this issue, you should try opening the error showing the file in Excel 2003. If your excel file gets opened with it then save your data in web page file format(.html) and then check whether it is opening in Excel 2010/2007.

To perform this task, go through this step-by-step procedure:

• Open your .xls file in Excel 2003 version.
• Once it gets open, just make a tap on the File > Save tab.
• From the opened dialog box of ‘Save As’, select Web Page (.html) format as your Excel file ‘Save as type’. Hit the ‘Save’ option.

• After doing this you will see that all your xls file data gets saved in .html file format.
• Now try opening this HTML file in your Excel 2007/2010 application. It’s time to save your HTML format file with .xlsx extension. But save it new name otherwise it will overwrite your original file.

Fix 4- How to Fix Excel Found Unreadable Content In XLSX by Moving Excel File To A New Folder

Another solution that you can try to fix the ‘Excel found unreadable content’ error file is by shifting the file to another folder and then saving it with a new name.

Besides this, you can also try saving your affected file to new any other new folder and then try opening it.

Also Read: Fixed: Can’t Open MS Excel Because it is Damaged Or Incomplete

Fix 5- Install Visual Basic Component

It is observed that installing the ‘Visual Basic’ component of MS Office 2010 resolves the error message. You can apply the steps mentioned below in order to proceed with the steps to fix the issue:

• Move to Control Panel> Programs > select Microsoft Office 2010.
• After that click Change-> Add or Remove Programs. Now click the ‘plus’ sign provided next to Office Shared Features at the bottom of this list.
• After this, click Visual Basic for Applications, then right-click & Select Run from My Computer.
• Click Continue.
• The next thing you need to do is to reboot your system when this process finishes in order to get the data recovered after fixing the issue.

Hope after following the solutions on how to fix Excel found unreadable content in XLSX error is fixed.

Fix 6- Unlock your Blocked Excel File

This particular error message also comes when the excel file you are trying to access is blocked. Mainly this issue arises with downloaded or email-received Excel files.

Follow the steps to unblock the Excel file:

• Use of the File Explorer to browse the file’s location.
• Make a right-click over the Excel file and then choose the Properties option.
• Within the Properties sections just go to the General. Hit the Unblock option and make a tap over the Apply option to save all the done changes.

• Retry opening your Excel file to check whether you are still getting the ‘Excel found unreadable content’ error.

Fix 7- Disabling Hardware acceleration

If the resources of the PC are insufficient in supporting hardware acceleration then also this unreadable content error occurs.

You can disable this Hardware graphics acceleration by accessing the advanced Microsoft Excel settings.

The negative point of this solution is that your Excel program will start responding very low but this solution is overall quite effective.

Here is the complete step to disable hardware acceleration on MS Office:

• Go to the File tab then tap the Options button.
• Within the opened window of Excel Options hit the Advanced tab which is present on the left pane.
• Now go to the advanced tab, and move down to the Display Put a check across the Disable hardware graphics acceleration option.

• Hit the Ok button to apply all the done changes. After that restart your Excel application to see all your done changes in effect.

Also Read: Resolve ‘Excel Cannot Open The File ‘(Filename)’.Xlsx’ Error?

Fix 8- Repair Corrupt XLS/XLSV File

In case, if all the above workaround fails to resolve this error. Then it means your Excel file got corrupted very badly and you need to repair it immediately.

For easy handling of such a situation, use the expert’s recommended Excel repair software.

As it is the best software that repairs corrupt Excel worksheets without making any changes to their original content and formatting.

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* Free version of the product only previews recoverable data.

It also allows to recover of the entire data including charts, cell comments, worksheet properties, and other data. It can recover the corrupt Excel file to a new blank file. It is extremely easy to use even a novice user can use it and supports both Windows as well as Mac operating systems. So, just download it & follow the below steps:

Final Verdict:

So, this is all about the Excel found unreadable content in .xlsx office 2007 error.

Follow the given manual as well as automatic solutions on how to fix Excel found unreadable content in XLSX error. I Hope the given solutions help you to recover excel file data.

Apart from that, it is recommended to make handle the Excel file properly and make a valid backup of the data stored in it to overcome the data loss situation in the near future.

Good Luck!!!