If on Chrome, make sure you are signed into your desired account. Go to drive.google/drive/settings.Check the box next to "Create, open, and edit your recent Google Docs, Sheets, and Slides files on this device while offline."
To enable Google Drive to upload documents, you can follow these simple steps: Open Google Drive: Go to Google Drive and sign in with your Google account if you're not already logged in. Upload Button: In the top-left corner, you'll find a "+ New" button. Click on it to open a dropdown menu.
