For mass deployment, system administrators use command-line parameters:

This is the most straightforward method for individual users. Microsoft provides a dedicated page for downloading these language packs.

Step-by-Step: How to Get and Use Modern Offline Language Packs

Microsoft Office Language Pack Offline Installer Works

To make an offline installer work today, you must use the . The ODT acts as the engine that downloads the necessary language files from Microsoft's Content Delivery Network (CDN) to a local folder. Once downloaded, these files can be transferred via USB drive, external hard drive, or local network share to install languages on machines completely disconnected from the internet. Prerequisites for Offline Installation