The ODT uses a .xml file to understand exactly what to download. Create a text file named download-proofing.xml inside your extraction folder and paste the following code:
: Use the Office Customization Tool to select your Office suite and add every language for which you need proofing .
If you have Office 2021 LTSC (Long‑Term Servicing Channel) or a volume license edition, the standard Language Accessory Pack download page may not list your version. In that case, you need to obtain the language pack ISO images from the . These ISOs are designed for offline deployment and contain all the language components needed for LTSC editions.
: Simple "click and run" but requires an active connection during the actual installation. office 2021 proofing tools offline installer best
The traditional method of adding a proofing language is to open any Office application, go to → Options → Language , select a language, and click “Install.” This triggers an online download from Microsoft’s servers. In many scenarios, this approach is not feasible:
While it is easy to download these tools online, many users find themselves in situations where a reliable internet connection is unavailable, or they must prepare an offline installation for multiple computers in a secure environment. This comprehensive guide explores the best offline installer solutions for Office 2021 proofing tools, covering official Microsoft methods, third‑party deployment tools, troubleshooting common errors, and best practices to ensure a smooth, error‑free installation.
: To install on any machine from those files, run: setup.exe /configure proofing.xml . Method 2: Language Accessory Packs The ODT uses a
The Ultimate Guide to Office 2021 Proofing Tools Offline Installers
Now that the files sit safely on your hard drive, you need a script to deploy them locally without checking the internet. Create a final text file named install-proofing.xml in the same directory:
Go to the official Microsoft Support page for Language Accessory Packs. Select from the version tabs. In that case, you need to obtain the
Once you have your installer, the installation process is straightforward.
Office 2021 proofing tools are additional features that can be installed alongside the main Office suite to provide advanced proofing and editing capabilities. These tools can help users to check grammar, syntax, and style, as well as provide suggestions for improvement. Some popular proofing tools for Office 2021 include:
On this page, you select your Office version (including Office 2021), choose a language, and pick the correct architecture (32‑bit or 64‑bit). The web page then provides a download link that fetches the appropriate pack directly from Microsoft.
This occurs when the proofing tools for a language are not installed, even though the Office application detects text in that language.
Office will now install the proofing tools using the local files you just downloaded. Final Check Once finished, open Word, go to File > Options > Language , and you should see your new languages listed with "Proofing installed"