Excel files are not stored in the Microsoft account automatically; they are only retrievable through the account if they were saved or backed up to a cloud location linked to that account (for example, OneDrive or a synced folder) or recovered by Office’s built‑in recovery features on a device where the files still exist.
To get the latest version of the Excel sheet from the lost laptop, one of these must be true:
- The file was saved to OneDrive or another cloud location while signed in with the Microsoft account.
- In that case, sign in on the new laptop with the same Microsoft account used on the old one.
- Open Excel, go to File > Open, and browse OneDrive or the cloud location associated with that account.
- Any files stored there will be available and up to date with the last time they were synced.
- The file exists only on the lost laptop but was backed up using a Microsoft account–based backup (for example, via OneDrive folder backup or PC backup).
- After signing in with the same Microsoft account on the new PC, set up OneDrive and let it sync.
- Check the synced folders (such as Documents, Desktop, or a custom folder) for the Excel file.
If the file was stored only on the lost laptop’s local drive and never synced or backed up to the Microsoft account or OneDrive, it cannot be retrieved through the Microsoft account alone. In that case, only a backup or recovery from the original device (or its drive) would contain that file.
If Excel or the PC crashed previously and the file was open, and the file still exists on some device, Excel’s Document Recovery can help recover unsaved changes on that device by opening Excel and choosing the most recent version in the Document Recovery pane, then using Open or Save As. However, this requires access to the device where the recovery files are stored.
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