Opening an FBI File

The FBI file type is primarily associated with 7-Zip.

FBIFile Extension FBI
File extension: FBI
File type:  compressed archive

What is an FBI file?

FBI files mostly belong to 7-Zip. FBI files can use different internal formats, each with its own use.
7-Zip Archive: Some FBI files are 7-Zip compressed archives that hold forensic images. They are used to store disk images and related forensic data in a compact form. You can open these with 7-Zip, as shown on the 7-Zip website.
MP4 Container: Other FBI files are actually MP4 video files. In this case, the FBI file acts as a multimedia container. This format is handled by file viewers like FreeFileViewer, as detailed on the FreeFileViewer website.

  • Forensic Archive: Uses a 7z format to compress and archive forensic images.
  • Multimedia Container: Uses an MP4 format to store video data.

Keep in mind: The FBI extension itself does not standardize the file’s structure. It simply marks a file that must be handled with the appropriate tool based on its internal format.

How to open FBI files

You need a suitable software like 7-Zip to open an FBI 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 FBI file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a FBI file directly in the browser:. Just drag the file onto this browser window and drop it.

Online FBI Text Viewer

Choose your .fbi file to analyze

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Programs that open and convert FBI files:

  1. 7-Zip
    See the previous paragraphs to learn more about the main application. FBI files are often referred to as 7-Zip compresseds because this type of file is primarily created or used by this software.
  2. Total Annihilation (Main Unit Definition File) by Cavedog Entertainment
    Edit in any text editor. The identifying characters used for this association are - Hex: 5B 55 4E 49 54 49 4E 46 4F 5D, ASCII: [UNITINFO]. This file format is classified as Text.

Technical Data for FBI File Extension

File classification:
Compressed
Identifier:
Hex: 5B 55 4E 49 54 49 4E 46 4F 5D, ASCII: [UNITINFO] (provided by TrID database)
Related files:

an fbi compressed archive is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with FBI files

  • Associate the FBI file extension with the correct application.
  • Update your software that should actually open compressed archives. Because only the current version supports the latest FBI file format. Search, therefore, e.g. on the manufacturer website after an available 7-Zip update.
  • To make sure that your FBI file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .FBI file online - secure, fast, and no downloads needed.
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FBI file viewer FBI file description