Opening a VMO File

The VMO file type is primarily associated with Virtools.

VMOFile Extension VMO
File extension: VMO
File type:  behavioral server composition

What is a VMO file

VMO files mostly belong to Virtools by Dassault. VMO is a web-based publishing format often used to store video, audio, graphics, and UI interactions. VMO files are mostly used by 3DVIA Virtools, a program for creating and rendering interactive 2D and 3D content for the Web. Such VMO files are embedded in webpages. Siemens SL45 mobile phones used the VMO file extension to store voice recordings in a proprietary format only supported by Siemens mobile phones. Such VMO vocie recordings can be extracted and converted to WAV format if you wish to play it on a different device. Also, VinylMaster, a software for creating vinyl signage stores data in VMO files.

How to open a VMO file

You need a suitable software like Virtools to open a VMO file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your VMO file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a VMO file directly in the browser:. Just drag the file onto this browser window and drop it.

Online VMO Text Viewer

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Programs that open and convert VMO files:

  1. Virtools by Dassault
    See the previous paragraphs to learn more about the main application. VMO files are often referred to as Virtools 3d images because this type of file is primarily created or used by this software.
  2. Cosmopolitan (virtual makeover) by Broderbund
    Cosmopolitan Virtual Makeover is a software for virtually sampling/experimenting with different makeovers. Users could load a photo of themselves into Cosmopolitan Virtual Makeover and then reshape their eyebrows, lips, change their hair color etc. Files used to store such makeover have VMO file extension. This file format is classified as 3D Image.
  3. SL45 (voice recording) by Siemens
    SL45 was a series of mobile phones that were first released by Siemens in 2001. SL45 was the first mobile phone that supported memory expansion and had an MP3 player. Audio files created with the voice recorder that was built into SL45 had VMO file extension. This file format is classified as Audio.
  4. VinylMaster (data) by Future
    VinylMaster is a 3D design software for creating professional 3D vinyl signage. The program is compatible with Windows operating systems and offers an extensive toolkit for creating vector graphics, objects, text, and effects. Some data created by VinylMaster are stored in VMO files. This file format is classified as Data.

VMO file format:

Why is it important to know the file format? This is the only way to find out which program to use to open the file. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. If there are problems opening a file, you must first determine the file format used. Our examination of the VMO files comes to the following conclusion:

The VMO file extension is not common and is used by different programs with different formats. The file formats most commonly found in VMO files are:

The remaining 55% of all VMO files are files with no common format, such as SOMV. If you want to find out which format your VMO file belongs to, just click on the button "Choose your .vmo file to analyze".

Technical Data for VMO File Extension

File classification:
3D Image
Related files:
Related links:

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: VirtoolsPlayer
EXEFile: %ProgramFiles%\Internet Explorer\iexplore.exe -nohome %1


a vmo behavioral server composition is a special file format by Dassault and should only be edited and saved with the appropriate software.

How to solve problems with VMO files

  • Associate the VMO file extension with the correct application.
  • Update your software that should actually open behavioral server compositions. Because only the current version supports the latest VMO file format. Search, therefore, e.g. on the Dassault manufacturer website after an available Virtools update.
  • To make sure that your VMO file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .VMO file online - secure, fast, and no downloads needed.
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