To enable file versioning using OneDrive in your web browser:

1. Select "Return to classic OneDrive" from the bottom left of the OneDrive home screen.

2. Make sure your tool ribbon is 'ON' by clicking the gear settings icon in the top-right of the browser and clicking 'Ribbon' to 'ON'.

3. Click on the 'Library' tab, found on the left side of the page, in the ribbon.

4. Click on "Library Settings"

5. Click "Versioning settings"

7. Create and edit your "Versioning settings"

6. Click "OK"