ตัวแปลงไฟล์ออนไลน์ฟรี RB เป็น XBM

Was developed for the first mass-produced e-book reader – Rocket eBook. The format is written in Ruby. RB files are containers holding the entire content for a Rocket eBook device. It has DRM protection capability which is not used in the books published at present due to the format’s lack of popularity.

This is a monochrome image format with a bitmap structure. It is used to store images of icons and cursors in the X Window System graphical user interface, which is used for remote connections. The structure of an XBM file consists of simple text written in the C programming language.