Unfortunately, if you have deleted files from OneDrive, including from the recycle bin, and if the files were not backed up elsewhere, recovery may be quite challenging. OneDrive does have a feature called Files Restore, which allows users to restore files to any point over the past 30 days. However, this feature is only applicable if the files were still in OneDrive and not permanently deleted.
Since you mentioned that you deleted the files from OneDrive and the recycle bin, they are likely permanently removed from OneDrive's storage. Additionally, if the Excel file was password protected, it might complicate recovery attempts if the file was corrupted or not accessible.
If you had synced your OneDrive with your local machine, you might want to check if there are any local copies of the files on your computer. If you have a backup of your system or files from before the deletion, restoring from that backup could be another option.
For future reference, to prevent loss of important files, consider regularly backing up your data to multiple locations, such as external drives or cloud services, and utilize version history features where available.
If you need further assistance, contacting Microsoft Support may provide additional options for recovery, especially if the files were recently deleted and there might be a chance to retrieve them from their systems.
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