I have to admit, I’m a noob…especially to Sony files.
Here’s a screenshot of the Quicktime info for the format.

I dragged my footage from my Video Drive into FCPX using Proxy. Seems to be no issues.
But as an earlier entry mentioned, the file names for future projects might have the same name? I’m hearing that Sony doesn’t automatically parse the file names into sequential order?
For future reference, which format SHOULD I be filming in when renting a Sony a7s ii?
Music Producer dabbling in Video.
FCPX. Adobe CS6.
Canon 5D Mark III, T4i.
Small recording studio.