.FD File Extension

File Type 1

LaTeX Font Definition File

Developer N/A
3.4  |  8 Votes
Category Settings Files
Format Text

What is an FD file?

File used by LaTeX, a typesetting system used to create formatted documents; contains a font declaration that maps LaTeX font properties to TeX font specifications; used to describe how LaTeX font attributes are translated into TeX fonts.

More Information

FD files are stored in a plain text format and contain commands that declare font families, font provider files, and font encodings.

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Programs that open or reference FD files

Updated March 24, 2010
File Type 2

DataFlex Data File

Developer Data Access
3.0  |  2 Votes
Category Developer Files
Format N/A

Data file used by DataFlex, a 4GL (Fourth-Generation Programming Language) used for creating business database applications; contains references to an internal DataFlex number as well as DataFlex column definitions.

More Information

FD files are used by the DataFlex compiler to associate program code references with database tables.

Programs that open or reference FD files

Data Access Visual DataFlex
Updated March 24, 2010
File Type 3

IBochs Floppy Disk Image

Developer Luigi B.
2.0  |  1 Vote
Category Disk Image Files
Format Binary

An FD file may also be a disk image used by the IBochs PC Emulator for Android. It contains a copy of a floppy disk's contents, which can be loaded in IBochs. IBochs comes with one included FD file, named FREEDOS.FD.

More Information

IBochs is an Android port of the Bochs PC emulator. It allows users to emulate various operating systems on their Android devices.

To load an operating system or other data, users can save that data as an FD file. Users can then load the data using IBochs' virtual floppy disk drive. For example, IBochs uses FREEDOS.FD to load the FreeDOS operating system upon initial startup. After using an FD file to load data, users can write that data to an IBochs .HD file.

NOTE: Users can rename other floppy disk image files (such as .IMG files) to use the .fd extension to use them with IBochs.

How to open an FD file

You can open an FD file with IBochs PC Emulator (Android). If you are using an FD file to boot an operating system:

  1. Make sure your FD file is stored in ~/​Android/​data/​lb.myapp.lbochs/​files.
  2. Open IBochs and press F12 to access the boot menu.
  3. Select 1. Floppy.

IBochs will load the operating system your FD file contains.

Programs that open FD files

Updated February 16, 2023

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