.OTLN File Extension

Opal Outline File

Developer A Sharp
Popularity
3.9  |  10 Votes
 

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

Mac
A Sharp Opal

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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