Office 365 Proofing Tools Offline Installer — Best & Tested

Microsoft does not provide a standalone direct download for proofing tools alone. Instead, you create an offline installation source using the Office Deployment Tool (ODT).

If your organization has a Volume Licensing agreement (Open, EA, MPSA):

Always match the architecture (32/64-bit) of your installed Office.
Use OfficeClientEdition="64" or "32" accordingly in the XML.

If you only need spell check for a single language, adding the Windows language pack via Settings > Language may be simpler — but that still requires online, and is not Office-specific proofing.

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

. This method allows you to download all necessary language and proofing files once and deploy them to machines without an active internet connection. Step 1: Download and Extract the Office Deployment Tool Create a folder on your local drive, such as Download the ODT from the Microsoft Download Center file and extract its contents (which includes and sample configuration files) into your Step 2: Create the Configuration XML

You need an XML file to tell the tool exactly which proofing tools to download. Open Notepad, paste the code below, and save it as download.xml Configuration OfficeClientEdition "O365ProPlusRetail" /> < Configuration Use code with caution. Copied to clipboard : Ensure the OfficeClientEdition (32 or 64) matches your existing Office installation. Step 3: Download Proofing Files for Offline Use Command Prompt as an Administrator. Navigate to your folder by typing: Run the following command to start the download: setup.exe /download download.xml office 365 proofing tools offline installer

Wait for the process to finish. A new "Office" folder will appear in

containing approximately 3GB of data, including the proofing tools for your selected languages. Step 4: Install the Proofing Tools Offline Once the files are downloaded, you can move the entire folder to any offline computer via a USB drive. To install: Command Prompt as an Administrator on the offline machine. Navigate to the folder on your USB drive. Run this command: setup.exe /configure download.xml Alternative: Language Accessory Packs

For single-device setups where you can briefly connect to the internet, you can download a Language Accessory Pack

directly from Microsoft Support. These installers include proofing tools and can be saved for later use, though they may still attempt to verify components online during the initial setup. Language ID codes for any other regions to add to your XML file? Language Accessory Pack for Microsoft 365

For users of Microsoft 365, proofing tools—which encompass essential spelling and grammar checkers, thesauruses, and hyphenation rules—are typically integrated into the standard installation

. However, when working in low-connectivity environments or managing enterprise-wide deployments, an offline installer Microsoft does not provide a standalone direct download

becomes a critical necessity to ensure productivity is not stalled by a lack of internet access. Microsoft Support Obtaining an Offline Installer

There is no single "proofing tools only" offline setup file for Microsoft 365. Instead, the process generally involves two main paths depending on your subscription type: For Home and Personal Subscriptions : You can download a complete offline installer image (.img file) directly from your Microsoft account portal

. By selecting "Offline installer" from the "Choose a version" dropdown, you download a file that includes all necessary proofing tools for your selected language. For Business and Enterprise Subscriptions : Administrators must use the Microsoft Office Deployment Tool (ODT)

. This tool allows you to pre-download the required installation files—including specific language packs that contain proofing tools—to a local network share or USB drive for later offline use. Microsoft Support Implementing Proofing via Language Accessory Packs

For an existing installation that requires a new language, Microsoft provides Language Accessory Packs

. These packs include display, help, and the full suite of proofing tools for a specific language. Microsoft Support Use the Office offline installer - Microsoft Support Wait for the process to finish

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

. Unlike older versions of Office, modern Microsoft 365 apps do not have a standalone "proofing tools" executable; instead, they are deployed using a command-line setup and a custom XML configuration. Microsoft Learn Step 1: Download the Office Deployment Tool

The ODT is a free tool from Microsoft that allows for customized, offline installations. Microsoft Learn Download the latest version from the Microsoft Download Center to extract the files, which include and sample configuration files. Microsoft Learn Step 2: Create a Configuration XML You need to create a text file (e.g., proofing.xml

) that tells the tool to only download and install the proofing tools for your desired languages. Use the following template: Microsoft Learn Configuration "MonthlyEnterprise" "ProofingTools" /> < Configuration Use code with caution. Copied to clipboard Product ID "ProofingTools" to target only the linguistic tools. Language ID specific language codes Microsoft Learn Step 3: Download the Files (Offline Step)

This step requires an internet connection once to gather the files for future offline use. Microsoft Learn Deploy Office Long Term Service Channel (LTSC) 2021

Follow these basic steps for deploying Office LTSC 2021: * Download the Office Deployment Tool from the Microsoft Download Center. Microsoft Learn Add proofing tools to an existing Office 365 Installation

Now, run the tool to download the actual data from Microsoft servers.