Save File In Microsoft Office. On the Options page click Save and then look for the Save. Choose Files or Folders.
Saving in the Web Page Filtered file format removes Microsoft Office-specific tags. Select the Save category on the left side of the window. Change How Office Applications Automatically Save Files.
Save a Copy to use as a starting point.
See also how to save documents in doc format or HTML format. Since the spreadsheet is in the cloud Todd knows that AutoSave will automatically save his changes to the file if he makes them. You can also save a copy of the file and give it a new name. I have the Office Home and Student package and this problem seems to effect Word Excel Power Point and One Note.