You can easily restore your PowerPoint, Word, Excel files from the deleted hard drive partition, volume, Time Machine, encrypted start-up disk, and external Mac drive.
Such permanently deleted files from Mac are recovered by using an efficient Office file recovery software- Stellar Data Recovery Professional for Mac. Situations like above or when Office for Mac files are deleted from Trash as well entail a permanent loss of Mac Office files. Is there a way I can recover the Office PPT, Excel and Word files on Mac after a factory reset?’ I forgot to take the backup of an important folder, which had all the Microsoft Office files, before resetting my iMac running on macOS Big Sur 11 or Catalina 10.15.
Download the Volume License (VL) Serializer for Office LTSC for Mac 2021 from the Volume Licensing Service Center (VLSC).Office must be updated to at least Version 16.53.
Install the latest Office updates on each Mac where Office is installed.
If you're a volume licensed customer, you can upgrade to Office LTSC for Mac 2021 without having to uninstall Office 2019 for Mac. Upgrade to Office LTSC for Mac 2021 (volume license)
Whichever deployment method you decide to use, the following information can help you plan your Office for Mac deployment. Additional deployment information for Office for Mac Even though you can't customize app bundles, you can configure preferences for each app. This change prevents Excel from starting. For example, even if you don't need the French language resource files for Excel, don't delete them. Don't add, change, or remove files in an app bundle.
This means that you can't customize the app bundle before or after you deploy Office. To help improve security, Office for Mac has implemented Apple app sandboxing guidelines.