.oo3

File Type OmniOutliner 3 File IconOmniOutliner 3 File
File Format Proprietary (The Omni Group)
Usage Open manually
Rank ★ ★ ☆  Average
Description

Organizational file that can contain text, checkboxes, pop-up lists, and spreadsheets; some uses include creating to-do lists, managing agendas, tracking expenses, and taking notes.

Open With
macOS

IconThe Omni Group OmniOutliner

Updated 2007
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