.OTLN File Extension

Opal Outline File

Developer A Sharp
3.9  |  10 Votes
Category Data Files
Format N/A

What is an OTLN file?

Outline created by Opal, an outlining program for Mac OS X; creates hierarchical lists for organizing notes, projects, reports, ideas, etc.; Opal is the successor to Acta and has been completely rewritten for Mac OS X.

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Programs that open OTLN files

A Sharp Opal
Updated February 20, 2007

Verified by FileInfo.com

The FileInfo.com team has independently researched the Opal Outline file format and Mac apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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