Are there any error messages when you could not open documents? If yes, please give a screenshot.
Can you successfully open these documents on other Macs?
If you could not open these files on other Macs, firstly back up a document that fails to open and then repair it.
- Start Word and click on the File menu. Choose the Open option, and it will open up a dialog box where you can select the Word file which needs repair.
- After selecting the file, at the right bottom side of the window, choose the Repair option and click on the Ok button.
What’s more, use safe mode on your Mac to determine whether an issue is caused by software that loads as your Mac starts up.
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More information about this issue, you may refer to “Word for Mac document stops responding when you try to open a document”.
If you have any updates, please post back.
Regards,
Erin
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