All about PMW Files

The PMW file type is primarily associated with Media Composer.

PMWFile Extension PMW
File extension: PMW
File type:  specialized media file

What is a PMW file?

PMW files mostly belong to Media Composer. The PMW file can serve two main purposes.
In one use, it is a subtitle file format. It holds timing, text, and formatting data that helps synchronize captions with video. This file type is used in high-end video production tools such as Avid Media Composer and is associated with workflows found in tools like Vegas Pro and even project files in Pinegrow Web Editor.
In another use, the PMW file acts as a machine data file. In this role, it stores structured data for controlling waveform information, as seen with systems handling Yamaha Programmable Music Waveform. Such files are often managed with dedicated programs like the PMW Editor and can be found in advanced manufacturing environments, detailed on Autodesk Advanced Manufacturing.
Key points summarized by FilExt.com:
  • If your file is for subtitles, it contains cue points and text for integration into video timelines.
  • If it is a machine data file, it embeds numerical or structured information for controlling hardware or software processes.
  • FilExt.com note: Review the file contents (for example, by opening it in a text editor) to determine which use case applies.

    How to open a PMW file

    You need a suitable software like Media Composer to open a PMW 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 PMW file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a PMW file directly in the browser:. Just drag the file onto this browser window and drop it.

    Online PMW Text Viewer

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    Programs that open and convert PMW files:

    1. Media Composer
      See the previous paragraphs to learn more about the main application. PMW files are often referred to as Media Composer videos because this type of file is primarily created or used by this software.
    2. Pegasus Mail (Draft Stored Messages To Be Sent) by David Harris
    3. Windows (Performance Monitor File) by Microsoft Corporation
      The Mime types used with this association are: application/x-perfmon.

    Technical Data for PMW File Extension

    File classification:
    Video
    Related files:
    srt, sub, ass, pwm, pmx, zip, pmk, cnb, pmu, stl, txt, xml

    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: PerfFile, FileType: Performance Monitor File, AppName: Performance Monitor Command Line Shell
    EXEFile: perfmon.exe

    ProgramID: PerfFile
    EXEFile: %SystemRoot%\system32\perfmon.exe %1

    ProgramID: PerfFile
    EXEFile: %SystemRoot%\system32\mmc.exe %systemroot%\system32\perfmon.msc /F


    a pmw specialized media file is a special file format and should only be edited and saved with the appropriate software.

    How to solve problems with PMW files

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