FD File Type

- The quick facts

What are FD files and how to open them

Are you having problems opening a FD file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a FD file?

A .FD file is a FastDir-like quick directory lookup data file. Through our analysis of FD files, we know that one use of the format is FastDir-like quick directory lookup data. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

How to open FD files

Important: Different programs may use files with the FD file extension for different purposes, so unless you are sure which format your FD file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 3 different FD openers which you will find listed below.

Last updated: July 13, 2020

Other file formats using extension .FD

While FastDir-like quick directory lookup data is a popular type of FD-file, we know of 2 different uses of the .FD extension. Different software may use files with the same extension for different types of data.

LaTeX Font Definition

Through our analysis of FD files, we know that one use of the format is LaTeX Font Definition. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

While we have not verified the apps ourselves yet, our users have suggested 3 different FD openers which you will find listed below.

Various apps that use files with this extension

These apps are known to open certain types of FD files. Remember, different programs may use FD files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Microsoft Fortran PowerStationMicrosoft Fortran PowerStationUser submitted
WinEdtWinEdtUser submitted
AquazoneAquazoneUser submitted
We have not verified any software that we know for certain will work with FD-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with FD-files. If you know one, please use the 'Suggest a program' link below and tell us about it!