Use an eBook reader app such as Apple Books, Google Play Books, Kindle, Kobo, Calibre, or Adobe Digital Editions
On Windows or Mac, double-click the EPUB file if a compatible reader is installed
On iPhone or iPad, open the EPUB in Apple Books
On Android, open the EPUB with Google Play Books or another EPUB reader app
In a web browser, use an EPUB extension or online EPUB reader
Convert the EPUB to another format if your device does not support EPUB
Transfer the EPUB to your eReader device if it supports EPUB files
Open the file from your file manager and choose an EPUB-compatible app