Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .onm

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .onm file?
  • Which program can create the .onm file?
  • Where can you find a description of the .onm format?
  • What can convert .onm files to a different format?
  • Which MIME-type is associated with the .onm extension?
Outdoor Navigator Map .onm file icon

Outdoor Navigator Map

The ONM file is an Outdoor Navigator Map. Maptech's Outdoor Navigator is a topographic map software program for PocketPC devices.
Category: Data files
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
GPS Exchange Format Data
Garmin MapSource Document
OziExplorer Route Data
GisRussa Map
Holux GM-101 Tracklog
Garmin Point of Interest Data
TopoGrafix Location Data
Digital Chart of the World Data
Magellan eXplorist Map Image

Other types of files may also use the .onm file extension. If you have helpful information about .onm extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Caere FaxMaster Fax
iWork Keynote Macro
Corel WordPerfect SGML Alias Data
Space Engine Nebula Model Data
EIAS Camera Motion Export
Ogg Media File
O2Jam Music File
OMake Makefile

The .onm filename extension is often given incorrectly!

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

nom (1), lnm (1), inm (1), pnm (1), on (1), omm (1), ojm (1), obm (1), nm (1), knm (1), onl (1), omn (1), om (1), ogm (1)

Can't open a .onm file?

If you want to open a .onm file on your computer, you just need to have the appropriate program installed. If the .onm association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.onm

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 from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android