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A file to store text created using free software based on OpenOffice. It’s used to store books, reports, notes, and other textual information. The file has an XML structure, is used as an alternative DOC format and has an open source code.

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.