File Extension Library


.OTLN File Extension

  • Developer by: A Sharp
  • Category: Data Files

What are .OTLN files and how to open them?

Can't open .OTLN file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .OTLN file.

What is a .OTLN file extension?

.OTLN file extension is created by A Sharp. .OTLN has been classified as Data Files.

.OTLN is Opal Outline 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.

More information is available at the Opal Product Page.

How to fix problems with .OTLN files

  1. You need to update the application that you normally use to open .OTLN files. Only the latest version of the software supports the current .OTLN file format
  2. You need to check the .OTLN file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)