Forum Discussion
Excel cannot be open the file 'filename.xlsx' because the file format or file extension is not valid
Hi All, I have a excel.xlsx file saved in my system which has been corrupted .I atleast need to recover the data stores .It is a file of 124 KB and has around 35 worksheets in the workbook .I hav...
I would like to try your solution for fixing the corrupt file by changing the extension, but I cannot find where to click to access it. How do I change it? Once I save the file to the desktop, right click, what do I do next?
In File Explorer, I clicked on view tab at the top and selected the option to show extensions. Then I renamed the extension to xls. Unfortuatenly, when the document opened, it was blank - thankfully it was a copy. Now I just need a different solution. I do appreciate your trying to help!
- lollo585, You helped us finding how to change the extension. For me it worked perfectly. The file opened. Sure enough to tell you it was a huge one, full of graphs and numbers and other data. Nothing was lost.
