ตัวแปลงไฟล์ออนไลน์ฟรี PPT เป็น OTB

A file to store the generated presentations and Microsoft PowerPoint slide shows with the ability to edit them. It was first introduced to store the data in PowerPoint 97 Editor. Stores a set of individual slides with text, graphics, video, and audio information. The file contains information on visual effects inside the slides.

This format was created by Nokia for use in its proprietary phones. A bitmap image was used to transfer image files between devices over a wireless connection. It was mainly used when exchanging multimedia text messages that support inserting pictures.