To help you find the best recovery path, are you dealing with a (like "File format not valid") or is the file failing to open entirely?

Sometimes "corruption" is actually a file permission error. Try moving the file to a different folder or an external drive and opening it again. 3. Use Google Sheets

Upload the corrupted .XLSX file to Google Drive and open it with Google Sheets. Google’s cloud-based engine can sometimes bypass the errors that crash the desktop version of Excel. 4. Recover from AutoRecover

Since 5.95 is an older version, it may not be fully compatible with the latest Windows security updates or Excel formats (like modern .XLSX). Check if your key entitles you to a discounted upgrade to the latest version. Alternatives to Using Excel Fix 5.95