Can I share project files with my friends?

By using the dedicated SQUID Manager, you can save projects you create on the SQUID to PC/Mac. You can share ".prj" files you save on your computer. Please use SQUID Manager when you load ".prj" files to the unit.

For details, please see the '3.2. Project window' in the SQUID Manager User's Manual.
You can download the SQUID Manager User's Manual from the Pioneer DJ support page
https://www.pioneerdj.com/en/support/documents/production/toraiz-squid/.