Try this sample on your own DotNetNuke portal.

1. Download settings file bellow (right click on link and choose "Save target as...") and save it to the disk.
2. Install IndooGrid on your DNN portal (if you didn't install it yet).
3. Add new page to your DNN portal.
4. Add new IndooGrid to your page.
5. Go to Module settings page and click "Activate trial" if you didn't done that before.
6. Click on "Table settings" link of IndooGrid module.
7. Click on "Import-export" or wizard icon near link.
8. Click on "Browse" button.
9. Select the file you have downloaded (in step 1).
10. Click "Import" button.
11. Click "Finish".
12. Click "Update".