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.ONE File Extension

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File TypeOneNote Document

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CategoryData Files


File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.


Document created with OneNote, a note-taking program developed by Microsoft; accepts typed input as well as digitized handwriting; may also include text or objects pasted from other applications, such as images, drawings, and audio/video clips.

Program(s) that open .ONE files
Microsoft Windows LogoWindows
Microsoft OneNote 2016
Updated 5/16/2008