You can edit MS Excel files that you have stored in your Sync account from your Android phone or tablet and save the files back to Sync easily using the MS Excel app.
1. Launch Excel
2 .Tap Open
3. Select Browse
4. Click on Menu (3 horizontal lines from the top-left corner of the screen)
5. Select Sync
6. Navigate to the location of the Excel file you want to edit
7. Make the edits (changes are saved automatically, will be uploaded back to Sync when exiting file)