If you want to compress and reduce the size of a large EPUB file in Windows 11/10, this post will interest you. How do I make an EPUB file smaller? To make an EPUB file smaller in size, you need to ...

data compression reduces the size of a file creating more storage space and makes it more efficient to send across a network to compress or zip a folder just right click on it and select compress to ...

The Archive Name and Parameters window will pop up. In the General section, enter a name for the compressed folder in the Archive Name field, and select where you want the compressed file to be saved.