.OO3 File Extension

There is only one file type that uses the .OO3 extension:

OmniOutliner 3 File

OmniOutliner 3 File
  • Developer The Omni Group
  • Popularity
    4.2 (9 votes)
  • Category Data Files
  • Format N/A

Data file created by OmniOutliner, a program used for organizing information; can store information using text, checkboxes, pop-up lists, and spreadsheets; used for various purposes, including note taking, tracking expenses, and creating agendas.

OO3 files can be exported to a variety of text and document file formats, including .KEY, .DOCX, .RTF, .TEX, .OPML, and .HTML.

Software's name License Platforms
The Omni Group OmniOutliner 4.5 The Omni Group OmniOutliner 4.5 Free Trial Mac

Updated: August 28, 2016

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