Because Microsoft transitioned to Click-to-Run technology, creating an Office 365 offline proofing tool installer requires using the Office Deployment Tool (ODT) to download specific language files via a custom download.xml file. The process involves creating the configuration, running the download command to obtain the files, and then using the /configure command on the offline machine to install them. For a more direct option, users can download a full offline installer, which includes core proofing tools, through their Office.com account portal. For the full guide on deploying language packs, visit the Microsoft Learn documentation.
How to Use Office 365 Proofing Tools
Benefits of Using Office 365 Proofing Tools office 365 proofing tools offline installer
Run the ODT in download mode:
setup.exe /download config.xml
This pulls all required files into a local folder. Convenience : users can install the proofing tools