File types: AIF & WAV are full quality PCM ﬁles supported by almost every major DAW. Both are capable of encoding at 32 Float, and 24/16 and even 8 bit fixed point sample depths and at any sample rate.
When transferring ﬁles for continued work, please stay in these formats at the highest bit depth and sample rate you are working in. If you need to limit the file size to send online, use a Zip data compression program, as this is lossless.
If you convert to a lossy format such as MP3, AAC, or OGG, the quality is stuck at the compression rate of that codec choice* forever onward.