Office 365 Proofing Tools Offline Installer May 2026

To install Office 365 proofing tools offline, you must Office Deployment Tool (ODT)

Open Command Prompt (cmd) as Administrator.
Navigate to your ODT folder: cd C:\ODT
Run the download command: setup.exe /download download.xml
A progress window may appear briefly; wait until the command prompt returns. Check your SourcePath folder; it should now contain a folder named Office with subfolders containing the data files.

Are you trying to deploy these tools to multiple computers in a business environment, or is this for a single personal device?

Microsoft Support Language Accessory Pack for Microsoft 365 office 365 proofing tools offline installer

Additional Resources

Replace language tags with those you need (e.g., es-es, it-it, pt-br).
Add SourcePath="D:\OfficeOffline" if downloading to USB.

Installation Hurdles

: For offline or managed environments, you cannot simply download a single .exe . You must use the Office Deployment Tool and configure a .xml file to "side-load" the language data. To install Office 365 proofing tools offline, you

If you encounter issues during the installation process, here are some common problems and solutions: Open Command Prompt (cmd) as Administrator

Deployment Best Practices

Open a standard text editor (like Notepad) and create a configuration file. This file instructs the setup to download only the proofing tools for your target language instead of the whole Office suite.