Hi,
Is there a way to extract all my card collection to a spreadsheet, rather than browsing my collection in the app itself?
I wish! This was something I also inquired about when I started 5 years ago. 
Does anyone have such a spreadsheet they would be willing to share? You’d become a lot of people’s new best buddy 
I wish!
@eleman, are you on Discord? I maintain a card bot that can read screenshot of cards and can save it into a csv file. I built it for saving and searching decks but can probably retrofit it to read screenshots of a player’s collection. If you are interested, i’ll send you a link to our discord server.