

After, you are asked whether to install the extension only for your user or for all users.If this extension it is already installed, you'll be prompted to press OK to confirm whether to overwrite the current version by the new one, or press Cancel to stop the installation.Find and select the extension you want to install and click Open.The extension's files have OXT file extension. In Add Extension(s) dialog, you can find the extension's files in your system folders. In the Extension Manager dialog (Figure 2), click Add.


If you can't install system packages, you can install a spell checking dictionary extension manually.
