Boy do I miss them.
Raw files are generated with the read raw function and can record most simple transmissions within the frequency range of the Flipper. The “non raw” files are files in types the Flipper specifically understands. So for instance if you were speaking Chinese to me I could record it and play it back but if you were speaking English to me I could transcribe it into text as well. Raw files are a collection of timings for the on, off, 1’s, 0’s. They also include the modulation type AM/FM.
If we understood what exactly you are trying to do it might help.
Personally I might consider dumpster diving, reaching out to a local maker space, or just driving to find the correct cap at this point. Two days is going to fly by and starting over doesn’t sound prudent. There are still places that sell what you need in physical stores.
I’m not sure if you can directly send bits to the Flipper radio but maybe that’s a possibility using the command line interface.