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Basic information about FBI file

When there is a problem with opening files with the file extension FBI（*.FBI or *.fbi）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the FBI file yourself.

There are 1 file types using the FBI file extension in our database. In the further part of this page, you will find detail information about all the FBI file with their brief description and a list of programs that support FBI file sorted by operating systems. The table below provides useful information about the FBI file extension. It answers questions such as:
  • What is the FBI file?
  • How to open a FBI file?
  • What programs do I need to open a FBI file?
  • What programs help to create and edit a FBI file?
  • How to convert FBI files to another file format?
  • How to convert another files to FBI file format?


1.Detail information about FBI file extension: Total Annihilation Main Unit Definition

File type Total Annihilation Main Unit Definition Category Game Files
Developer Cavedog Entertainment File format N/A
Description FBI file is a Total Annihilation Main Unit Definition developed by Cavedog Entertainment. FBI filename suffix is mostly used for Total Annihilation Main Unit Definition files. Total Annihilation Main Unit Definition specification was created by Cavedog Entertainment. FBI files are supported by software applications available for devices running Windows. FBI file format, along with 1248 other file formats, belongs to the Game Files category. The software recommended for managing FBI files is Total Annihilation. Total Annihilation software was developed by Cavedog Entertainment, and on its official website you may find more information about FBI files or the Total Annihilation software program.
Software programs that will open, edit or convert FBI files

Windows		 Total Annihilation



Can't open a FBI file?

When you click a file to open it, operating system examines the filename extension. If operating system recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When operating system does not recognize a filename extension, you receive the following message:

”Can't open this file: example.FBI”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the FBI extension without any issue.


Where I can download the application that support FBI file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How 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.


Can I change the extension of FBI files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a FBI file?

The reasons for the lack of the ability to open a FBI file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a FBI file. If there is still something wrong, you might want to check:

  • Whether the FBI file is damaged.
  • Whether the FBI file is incorrectly linked in the registry entries.
  • Whether the FBI file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the FBI file format is incompletely.
  • Whether the FBI file is infected.
  • Whether the drivers of the equipment used for opening a FBI file are up to date.
  • Whether your computer has enough hardware resources to open a FBI file.

If the FBI file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.