Getting the message "Errors were detected while saving XYZ.xlsx.   Microsoft Excel may be able to save the file by removing or repairing some features.   To make the repairs in new file,  click Continue.  To cancel saving,  click Cancel."   This is happening with Excel 2010 when trying to save to a network drive.   It will allow the users to save to an external (USB) drive.   Trying to determine if there are any settings or updates that will resolve the problem.

Do you have a copy of Microsoft Excel 2010 installed on your server?

Other ways are to save it to your SQL database using FTP protocol.