Hey! Sorry to hear you're having trouble. Could you tell me which version of the game you downloaded (PC/Mac/Android)? None of the builds are RAW, but the PC build is a .Rar and needs to be extracted before it will run. - Hallows
Viewing post in Sanguine Rose - Lost Chapters comments
Yes, Rar isn't supported on Windows by default, but there's lots of free options which will allow you to extract. WinRar is probably the most popular, but there's a few others listed here: https://www.thewindowsclub.com/open-rar-files-in-windows-10/ I hope this helps :) - Hallows