OSN file format description

Many people share .osn files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .osn file can be edited, converted or printed with. On this page, we try to provide assistance for handling .osn files.

1 filename extension(s) found in our database.

.osn - OMSI Saved Situation

The OSN game data files are related to Omnibus Simulator. The OSN file is an OMSI Saved Situation. OMSI: The Omnibus Simulator is a driving game, developed and published by Aerosoft.

Omnibus Simulator
Game Data files
- / -
OMSI Saved Situation related extensions:
ROBLOX Location Data
RealFlight Model File
Starpoint Gemini 2 Mod Package
Stolen Game Data
Alexander Game Data
Delta Force Converted Terrain Data

Naturally, other applications may also use the .osn file extension. Even harmful programs can create .osn files. Be especially cautious with .osn files coming from an unknown source!

Can't open a .osn file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .osn file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

isn, lsn, os, osb, osg, osh, osm, psn, sn, son

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

OptionVue Portfolio Manager Positions Data
ObjectScript Source Code
IBM InfoSphere Schema Data
SBStudio II Song
WaterGEMS Outage Segmentation Results Data
OpenStreetMap Binary Map

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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If you have useful information about the .osn file format, then write to us!

DataTypes.net >> OSN file