Hi.
On my Excel at least, once the apk files in my archive were installed, the Google sync kicked in. Then when you go to your calendar settings, your web-based Google calendar should be there. As long as you have a Google calendar created online.
I think that's how it works.
Copy the files (extracted) to the root of your SD card. Run Scroll Apps (Easy Installer), and set it to re-scan for apk files.
Hope this helps.