Altium Extension Offline Install [patched] Here
Transfer the package to the offline machine.
Go to . The software should automatically scan the local folder, register the new files, and list the extension under your "Installed" tab. Restart the software to initialize the new functionality. Method 3: Utilizing Altium Infrastructure Server (AIS) altium extension offline install
Click on the (top right) and select Extensions and Updates . Go to the Installed tab. Click the + Add button at the top right of the page. Transfer the package to the offline machine