Excel File showing extension error

[robinshanab]

Today, I opened an Excel file and got the error message related to file extension issue. I did not change any extension then why I am getting it?

Here is the complete message:
Excel cannot open this file 'officedata.xlsx' because the file format or the file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file.

Thank you

Regards
Robin

[kersplash]

You might get this if someone has changed the extension of a file from say 'csv' to 'xlsx' to make it into what they think will be an Excel workbook.

[xladept]

Try changing the name and see if it will open.

[robinshanab]

Thank you for quick reply!

I have created the file this month and file extension is .xlsx . We do not change it.

[robinshanab]

Try changing the name and see if it will open.

Done that.. not working.

[kersplash]

Have you tried opening the file on another computer?

[steve.smith]

Today, I opened an Excel file and got the error message related to file extension issue. I did not change any extension then why I am getting it?

Here is the complete message:
Excel cannot open this file 'officedata.xlsx' because the file format or the file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file.

Thank you

Regards
Robin

Robin,

Open the excel file in SAFE mode. To do so: hold the CTRL key and open the file.

You should try Open and Repair method to fix this error. Follow these steps to perform this repair:
1. Open MS Excel
2. Go to File->Open
3. Select your file
4. Choose Open and Repair option

[robinshanab]

Have you tried opening the file on another computer?

Sir, I also tried this. I am getting the same error message.

[robinshanab]

Robin,

Open the excel file in SAFE mode. To do so: hold the CTRL key and open the file.

You should try Open and Repair method to fix this error. Follow these steps to perform this repair:
1. Open MS Excel
2. Go to File->Open
3. Select your file
4. Choose Open and Repair option

Sir,

Thanks for steps by step process but, it is not working for me. What else I can do?

[steve.smith]

Sir,

Thanks for steps by step process but, it is not working for me. What else I can do?

Try to Export your file:
1. Open Excel
2. File->Export
3. Select Change File Type
4. Save the changes and open you file

Please read this forum discussion on Microsoft forum community about this error: https://social.technet.microsoft.com...ion-dont-match

[robinshanab]

Thank you so much Steve. Shared reference is very helpful. I fixed the error.

Great forum.

Regards,
Robin