Sign in to your Microsoft Account , select Install Office > Other options , and check the box for Download an offline installer . This downloads an .img file containing the full Office suite in your chosen language.
Now you can move the entire C:\ODT folder to any computer without internet access and run the installation. On the target PC, open as an Administrator.
If you are looking for a simpler way and have a personal subscription: office 365 proofing tools offline installer
The ODT is a command-line utility used to download and deploy Microsoft 365 Apps to your local environment.
Go to the Official Microsoft Download Center and download the tool. Sign in to your Microsoft Account , select
This step fetches the actual installer files from Microsoft's servers to your local folder so you can use them offline later. Open as an Administrator. Navigate to your folder: cd C:\ODT Run the download command: setup.exe /download proofing.xml
Microsoft Support Language Accessory Pack for Microsoft 365 On the target PC, open as an Administrator
For Microsoft 365 (formerly Office 365), there is no single standalone "proofing tools" exe file for offline use. Instead, you must use the to download the necessary files to a local folder and then run the installation from that source. Step 1: Download the Office Deployment Tool (ODT)
Run the exe and extract the files (usually setup.exe and a few .xml configuration files) into a new folder on your PC, for example, C:\ODT . Step 2: Create a Configuration XML File
Wait for the process to finish. A new Office folder will appear in C:\ODT containing the offline data. Step 4: Install Offline