To install Shack Spreadsheets, please download it first from your Joomlashack customer Dashboard.
- In your Joomla control panel, go to "Extensions" > "Manage" > "Install":
- You will see the "Extensions: Install" administrative page, as shown on the next image.
- On the tab "Upload Package File", click the green button:
- In the "Open File" box, find the JoomlaShack extension you need to install.
- Click on the file name twice.
- After a few moments of screen activity, you will see successful installation messages on a light green background, similar to the ones shown on the next image: