Office automatically syncs changes to Sharepoint files. On rare occasions, if an Office app closes unexpectedly, or if changes made from different devices can't be resolved, a sync conflict can occur in OneDrive. If you run into problems with changes not syncing or merging properly, you might want to change your sync settings in OneDrive.
Select the white or blue OneDrive cloud icon in the Windows taskbar notification area:
(You might need to click the Show hidden icons arrow next to the notification area to see the OneDrive icon.)
Select
Help & Settings > Settings
Select the Office tab.
Note. If you don't see this tab, and you're using Office with a work or school account, the setting might be controlled by your IT admin. To stop using Office to sync Office files, clear the Use Office applications to sync Office files that I open check box
To stop using Office to sync Office files, clear the Use Office applications to sync Office files that I open check box.
Note: If you turn off this setting, Office will no longer be able to automatically merge changes from different versions of documents. You'll also be prompted to upload a new copy of a file before you can share it directly from an Office desktop app.
Select how you want it to handle Sync conflicts:
- Let me choose to merge changes or keep both copies If you choose this option, when you have a Word, Excel, PowerPoint or Visio file with conflicting changes, OneDrive will ask you if you want to open the file in Office to merge the changes, or keep both copies.
- Always keep both copies (rename the copy on this computer) If you choose this option, OneDrive keeps both copies of the file and renames the copy on your computer to add the computer name to the file name.