Two days left to download purchased Kindle Books to a computer for backup/ format conversion! On 2/26/2025 Amzn is removing the option. I used these directions to import mine into Calibre, so now I have I have local, unlocked copies for future use on non-Amzn devices: https://www.reddit.com/r/Calibre/comments/1iqze9p/kindle_drm_etcno_success/?rdt=33958