Office Online applications including Word Online, PowerPoint Online, OneNote Online, Excel Online, and OneDrive stores recently opened items shortcuts in the left pane. This comes in handy for quick access when you need, but not everyone is a fan of it. For example if you are on Word Online the recently accessed documents are shown in the left pane.
Likewise recent PowerPoint presentations are shown in PowerPoint Online recent pane, and recent Excel sheets are shown in Excel Online recent pane.
Unfortunately, there is no simple way to clear the items straight from Word Online, PowerPoint Online or Excel Online. They all need to be cleared from OneDrive’s settings and that would reflect in each of the apps.
Click on the “Menu” button located on the top left of any online Office app and then click on “OneDrive”.
Click on “Recent docs” to see all the recent items list. Select the items that you want to clear from the recent list, then click “Manage> Remove”.
Recent items will now get cleared. Now go to Word Online and check the recent list – they will be gone.
If you still see the recently opened files, don’t worry it’s just browser’s temporary cache displaying it. Close and reopen the browser and you should all be done.