Hello all. Complete beginner to photography here, so please excuse any ignorant questions I may have. I have borrowed a EOS from a fmaily member with a nice 28-105 ultrasonic lens to learn on.

I loaded it with a new roll of film, but for a class I am taking, I want to take that roll out since it will be for my personal practice. Can I take a roll out once I loaded it in before I finish the roll wit hthe intention of re-using it? How would I go about doing that? Can I rewind the film, take it out, but then how do I put it back in and get back to the spot I left off at?