Having problems opening an OS file?

We have programs that can open or convert your OS files.

Opening OS files

Did your computer fail to open an OS file? We explain what OS files are and recommend software that we know can open or convert your OS files.

What is an OS file?

Developed by the makers of ObjectScript, the .os file extension can be referred to files that are distinguished as developer files that contain executable script with a list of commands and functions written in an ObjectScript programming language.

ObjectScript is a general purpose object-oriented programming language which is a functional superset of the ANSI-standard MUMPS programming language. It can run ANSI MUMPS routines with no change. ObjectScript has a number of implemented support for object-oriented programming, macro preprocessing language, embedded SQL for ANSI-standard SQL access to M's built-in database, procedure and control blocks using C-like brace syntax, procedure-scoped variables, and relaxed whitespace syntax limitations.

OS files can be converted into a standalone ObjectScript application by bundling the files into a .JAR file. ObjectDevel is one of the few specialized programs that can open and run .os files. It has a version for windows as well as for Mac.

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

About File Extension OS

File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.

If you have additional information about the OS file format or software that uses files with the OS suffix, please do get in touch - we would love hearing from you.