How to Resolve 'The file is corrupted and cannot be opened' Error of MS Excel Support July 26, 2018 04:10 Updated Open your MS Excel application. Click 'File >> Options'. Select the 'Trust Center' and press button under 'Trust Center Settings'. Click 'Protected View'. Uncheck all the options available under 'Protected View' and click 'OK' to confirm. Related articles Error 3265 - Item cannot be found in the collection corresponding to the requested name or ordinal Switch To - the action cannot be completed because the other application is busy Error 53 - File not found error when adding a document template category Unblocking Document Templates (including using powershell) Comments 0 comments Please sign in to leave a comment.