An os3 file extension is associated with the OS/2 Warp 3 operating system. An os3 file contains data.

Detailed description

Software that open os3 file

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OS3 file extension - OS/2 Warp 3 data

What is os3 file? How to open os3 files?

File type specification:

Various data file type icon Various data file type

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.

This os3 file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

The default software associated to open os3 file:

OS/2 icon

IBM logoOS/2  Other operating systems or devices software

Company or developer:

OS/2 is operating system developed by IBM for personal computers. OS/2 is no longer marketed by IBM and support for OS/2 was discontinued in 2006. OS/2 is very similar like Windows in many ways, but also has similarities with Unix. The last version of OS/2 is named OS/2 Warp.

Help 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.

List of recommended software applications associated to the .os3 file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open os3 file, edit os3 file, convert os3 file, view os3 file, play os3 file etc. (if exist software for corresponding action in's database).

Unspecified and all other actions for computer programs working with os3 file - OS/2 Warp 3 data

Click on the software link for more information about OS/2. OS/2 uses os3 file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).

Other operating systems or devices:

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