.OO3 File Extension

OmniOutliner 3 File

Developer The Omni Group
Popularity
3.7  |  9 Votes
 

What is a OO3 file?

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.

More Information

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

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Programs that open OO3 files

Mac
The Omni Group OmniOutliner 4.5
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