: Drag and drop the file via USB to devices like Kobo or PocketBook (Note: Amazon Kindles typically prefer .mobi or .azw3 , but you can send an EPUB to your Kindle using the official "Send to Kindle" web tool which automatically converts it).
: The target file format. EPUB is an open e-book standard that is actually a structured ZIP container containing HTML, CSS, and image assets. Epub 7z 001
: Use specialized extractors like The Unarchiver or Keka . : Drag and drop the file via USB