File Extension Library


.OS3 File Extension

  • Developer by: IBM
  • Category: Various data Files

What are .OS3 files and how to open them?

Can't open .OS3 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 .OS3 file.

What is a .OS3 file extension?

.OS3 file extension is created by IBM. .OS3 has been classified as Various data Files.

.OS3 is OS/2 Warp 3 data

The os3 file extension is related to the OS/2, an operating system for IBM-PC compatible computers, developed by IBM.

The os3 file stores some kind of data from OS/2 Warp 3.

Most likely obsolete file format.

.OS3 file format is deprecated and this file format is no longer supported.

Currently, .OS3 file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .os3 file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

How to fix problems with .OS3 files

  1. You need to update the application that you normally use to open .OS3 files. Only the latest version of the software supports the current .OS3 file format
  2. You need to check the .OS3 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)