An io file extension is related to Modula-3 programming language. An io file stores object.

There are 3 other file types using
the IO file extension!

empty icon.io - CPIO compressed file archive

empty icon.io - Io language script

empty icon.io - Arabian Nights game data

Detailed description

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IO file - Modula-3 object

What is io file? How to open io files?

File type specification:

Source code and script file type icon Source code and script file type

The io file extension is associated with the Modula-3, a programming language. The io file stores objects.

Modula-3 is used in research circles (influencing the designs of languages such as Java, C#, and Python) it has not been adopted widely in industry.

It was designed by Luca Cardelli, Jim Donahue, Mick Jordan, Bill Kalsow and Greg Nelson at the Digital Equipment Corporation (DEC) Systems Research Center (SRC) and Olivetti in the late 1980s.

This io 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.

Updated: March 27, 2018

Help how to open:

You cannot access these files manually.

How to convert:

There is probably no real way how you can convert this particular file type to anything else.

Related links:

Modula 3 at Wikipedia

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File-Extensions.org > Source code and script file types

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