For Office 2021, there is no single, official "standalone" .exe or .msi file solely for proofing tools as there was for legacy versions like Office 2016. Instead, Microsoft utilizes the Office Deployment Tool (ODT) to manage proofing tools as specialized Click-to-Run packages that can be downloaded for offline use. Core Mechanism: The Office Deployment Tool (ODT)
The Office Deployment Tool is the primary method for administrators and advanced users to create an offline installer for specific components like proofing tools.
Offline Functionality: The ODT allows you to download all necessary files from the Microsoft Content Delivery Network (CDN) to a local folder (e.g., a USB drive or network share). Once downloaded, these files can be installed on target machines without further internet access.
Reduced Footprint: Using the Product ID="ProofingTools" tag in your configuration file allows you to install only the linguistic tools (spellcheck, grammar, etc.) for a specific language without needing the entire language interface pack, which significantly reduces the local storage requirement. Implementation Procedure
To create an offline proofing tools installer, you must follow a two-step command-line process.
Download Stage: Use the /download command to pull the files from Microsoft's servers to your local machine. Command: setup.exe /download configuration.xml
Configuration Stage: Once the files are local, use the /configure command on the destination machine (offline) to perform the actual installation. Command: setup.exe /configure configuration.xml Technical Configuration Example
The configuration file is a simple XML document that tells the ODT exactly what to download. Below is a standard template for deploying German and Spanish proofing tools for an existing Office 2021 installation: Deploy Office Long Term Service Channel (LTSC) 2021 office 2021 proofing tools offline installer
Follow these basic steps for deploying Office LTSC 2021: * Download the Office Deployment Tool from the Microsoft Download Center. Microsoft Learn
To install Microsoft Office 2021 Proofing Tools offline, you must use the Office Deployment Tool (ODT). Microsoft no longer provides standalone, one-click offline installers for proofing tools for versions 2019 and later; instead, they are bundled into "Language Accessory Packs" or deployed via configuration files. Prerequisites
Download the Office Deployment Tool (ODT) from the Microsoft Download Center. Extract the setup.exe to a dedicated folder (e.g., C:\ODT). Step 1: Create the Configuration XML
You need a .xml file to tell the ODT which proofing tools to download. Open Notepad, paste the code below, and save it as download-proofing.xml in your C:\ODT folder. Example for English and Spanish Proofing Tools:
Use code with caution. Copied to clipboard
OfficeClientEdition: Set to 64 or 32 to match your existing Office installation.
Language ID: Use standard codes like fr-fr (French) or de-de (German). Step 2: Download the Files (Offline Installer) Open Command Prompt as an Administrator. Navigate to your folder: cd C:\ODT For Office 2021, there is no single, official "standalone"
Run the download command:setup.exe /download download-proofing.xml
Wait for the command to finish. A new Office folder containing the offline data will appear in C:\ODT. Step 3: Install the Proofing Tools
Once the download is complete, run the installation command from the same Command Prompt:setup.exe /configure download-proofing.xml Alternative: Language Accessory Packs
If you have an internet connection but simply want to add proofing tools without a full redeployment, you can use the Language Accessory Pack web installer: Visit the Microsoft Support page for Language Packs. Select Office 2021 and your desired language.
Download and run the OfficeSetup.exe. This will automatically add the display and proofing tools for that language.
Note: If you are an IT administrator managing volume licensed versions (LTSC), you should download these through the Volume Licensing Service Center (VLSC).
For Office 2021, Microsoft does not provide a standalone "offline installer" file for proofing tools as it did for older versions like Office 2016 . Instead, you must Office Deployment Tool (ODT) to download and package the language files for offline use Method 1: Using the Office Deployment Tool (Recommended) Blog Title: Why You Still Need the Office
This is the standard way to create an offline package that includes proofing tools for specific languages. Use the Office offline installer - Microsoft Support
Blog Title: Why You Still Need the Office 2021 Proofing Tools Offline Installer (And Where to Find It)
Published: April 12, 2026 | Category: Deployment & Administration
We live in a streaming-first world. Microsoft 365 wants you always online, always updating. But for many organizations—and even home users—the offline installer for Office components remains the gold standard for reliability.
One of the most overlooked, yet critical, components is the Office 2021 Proofing Tools.
If you manage a multilingual team, work on classified documents in an air-gapped environment, or simply have terrible rural internet, this post is for you.
If you own an Enterprise or Business license for Office 2021, you can download the full offline language pack from the Volume Licensing Service Center.
Open Word. Go to Review > Language > Set Proofing Language. Select the newly installed language. Notice that the "spell check" icon now shows a blue checkmark instead of a red X.