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...
Potential Solution that worked for me-
The file was hosted on Teams.
OneDrive was unable to properly sync the file after I changed my account password. Had to sign out of OneDrive, delete the file, sign back into OneDrive and resync the file. Worked perfectly after that.