Turn on autosave and auto-restore in MS Office
Open the Office program (Word, Excel, PowerPoint, Publisher, Visio, Project…) and click the menu File > Options> Save> Save documents.
Make sure the Save AutoRecover per minute box is checked, and then choose how often you want MS Office to automatically save your document (determine a value between 1 and 120).
How to Enable AutoRecovery for files in MS Office
The Keep the last autosaved version if close without saving the Enables option allows you to restore unsaved documents (with minimal data loss).
Once you have enabled this feature, MS Office will save copies of your most recently automatically saved versions in the UnsavedFiles folder (located in C: Users Username AppData Local Microsoft Office ).
To restore unsaved files, open a new or existing document and then click File > Info > Manage Versions > Recover Unsaved Documents.
Files are kept for four days.