Opening FIM Files

The FIM file type is primarily associated with Pegasus Mail.

FIMFile Extension FIM
File extension: FIM
File type:  data file

What is a FIM file

FIM files mostly belong to Pegasus Mail. FIM files are not a single standard but a label for several internal file formats used in different systems. They serve several specific purposes:
Filtered Internet Mail:
  • This type stores mail filtering data – for example, the Pegasus Mail Filter File holds rules and criteria for processing incoming messages.
  • CAD Model Files:
  • Used by design systems like FrameCad, these files save structural or model data. More details are available at the FrameCad website.
  • FITS Image Files:
  • Sometimes the file uses the TIFF structure to store FITS image data, a format common in astronomical and scientific imaging. Additional info can be found at the NASA FITS page.
  • Financial Information Management:
  • This version contains structured financial data, often linked to systems like Forcepoint FIMware.
  • FORM.EXE Form Data Files:
  • These files save data for forms created in applications such as FormTool and processed by systems like FormFlow Filler.
  • FilExt.com tip: Each file’s internal structure depends on the originating software, so to open or view a FIM file, it is best to use the native application that created it.

    How to open FIM files

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

    Online FIM Text Viewer

    Choose your .fim file to analyze

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    Programs that open and convert FIM files:

    1. Pegasus Mail
      See the previous paragraphs to learn more about the main application. FIM files are often referred to as Pegasus Mail data files because this type of file is primarily created or used by this software.
    2. Construsyc/Instasyc File
    3. Fractal Imaginator (Data/Parameter File) by Mystic Fractal
      Fractal Imaginator is a program for generating fractal images.
    4. Paul van Keep's Icon Heaven
      The identifying characters used for this association are - Hex: 4C 49 00 01 00 00 00 00, ASCII: LI.

    Technical Data for FIM File Extension

    File classification:
    Data
    Related files:
    fits, cad, fin, form, rim, pfm, idx, avro, zip, dat, cfg, xml

    a fim data file is a special file format and should only be edited and saved with the appropriate software.

    How to solve problems with FIM files

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