I'm using windows10 os on my pc. so i downloaded few audio files from a website which needs my email to login. My first question is - how to see if those audiofiles contains my email which i used to login that site? now after downloading those audiofiles to my pc, i edited them with audacity and during saving those edited files i completely kept blank in meta data section. my 2nd question is- will those edited audiofiles have any digital footprint which can b used to traceback to my pc? if so how can i see if there's any digital footprint at all in those files and how to remove those footprints? Thank you.