How to add VS-Code Extension without internet access?

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You can install VS Code extensions offline by following these steps:

1. Download the extension file (.vsix) from the VS Code Marketplace on a computer with internet access.
2. Transfer the downloaded file to the computer without internet access using a USB drive or similar method.
3. Open VS Code on the offline computer and press Ctrl + Shift + X to open the Extensions panel.
4. Click on the three dots icon in the Extensions panel and select "Install from VSIX"
5. Navigate to the location where you transferred the extension file and select it.
6. VS Code will install the extension offline.

Note: Some extensions may have dependencies or require an active internet connection for activation or updates.