.OTLN File Extension

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

Opal Outline File

Opal Outline File
  • Developer A Sharp
  • Popularity
    4.8 (6 votes)
  • Category Data Files
  • Format N/A

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.

More information is available at the Opal Product Page.

Software's name License Platforms
A Sharp Opal A Sharp Opal Mac

Updated: February 13, 2007

Search File Extensions