Exporting files from Library?

Kind of an off-beat question here, really hoping someone can help me.

Every once in a while, when importing footage, I'll be in such a hurry that I'll accidentally import the footage right from the memory card into a new FCPX event. The clips will formulate in the library (as expected), and then I'll be able to edit them. I try to catch myself before I do this but (sometimes) I'm in such a rush that I miss the step of physically taking them off of the memory card, putting them into a folder on my HDD, and then importing them into my library. So the only 'source files' I know of would be in the actual library panel for the FCPX program.

Anyway - I have a friend of mine who's requesting some files that I filmed about 9 months ago. I don't have that footage on my memory card anymore. They want to make a little snippet of an engine being built. I have all the files in my library within FCPX, able to be viewed and edited, but I'm unsure if there's a way that I can go find these source files. Are they stored somewhere on the computer? Or is there a way I can export all the files from my FCPX library somewhere so I can have those raw files sitting in a folder I can send to him? Otherwise, I may have to export each clip one by one, and there are 130+ clips.

Lesson learned! Lol. Won't do that again. ✅

Thanks for anyone who can provide even the slightest of help! 😁