- Launch Visual Studio Code.
- Select View > Extensions or Ctrl+Shift+X. You can also open extensions by selecting the Extensions tab from the Visual Studio Code activity bar.
- Enter Office Add-ins Development Kit in the search box.
- Select Office Add-ins Development Kit. From the Office Add-ins Development Kit extension page that appears in the main pane, select Install. After successfully installing, the Office Add-ins Development Kit icon will appear in the Visual Studio Code activity bar.