All about FGD Files

The FGD file type is primarily associated with Valve Hammer Editor.

FGD	File extension: FGD
	File type:	plain text configuration file

What is an FGD file

FGD files mostly belong to Valve Hammer Editor. FGD files are definition files that list and describe entities used by specific software. They are most common with the Valve Hammer Editor where they define game objects, properties, and how levels are built.
Other uses include:

3D printer configurations, where the file stores Forge Game Data instructions.

GIS applications, specifically for map metadata in ArcGIS Desktop handling USGS Digital Raster Graphic information.

FilExt.com tip: This plain text format can be opened in a simple text editor and is used to customize and extend the behavior of the software. For more details on the Valve Hammer Editor, see Valve Hammer Editor, and for ArcGIS Desktop, visit ArcGIS Desktop Overview.

How to open an FGD file

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

Online FGD Text Viewer

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Programs that open and convert FGD files:

Valve Hammer Editor
See the previous paragraphs to learn more about the main application. FGD files are often referred to as Valve Hammer Editor games because this type of file is primarily created or used by this software.
Digital Raster Graphic Metadata File
Folder Guard Data
Half-life Modification Map Configuration File
(also see .BSP)

FGD file format:

Why is it important to know the file format? This is the only way to find out which program to use to open the file. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. File extension, signature and file format must match; otherwise errors will occur when the file is opened. If there are problems opening a file, you must first determine the file format used. Our evaluation of the FGD files looks like this:

FGD is not a commonly used file extension and is used by different programs with different formats. The two most common formats are as follows:

25% of all FGD files start with the bytes 30 00 00 00, which are crucial for this file format. They consist of unreadable binary data. A typical file size is 33 MB. It is a modern file type. The file name AllInOne.fgd is typical for these files.
6% of all FGD files start with the magic bytes @include "base.fgd", which are always the first bytes of this file format. The content consists of readable text data, which can be read using a text editor. FGD files are between 410 bytes and 710 bytes in size. Several words can almost always be found in the files, e.g. @include "base.fgd", @include "halflife2.fgd", "Apply the toolsinvisibleladd, "Ladder. Players will be able to move freely along this brush, as if it was a ladder." + and @SolidClass = func_ladder . The following filename is common: garrysmod.fgd.

The remaining 69% of all FGD files are files with no common format, the following 4 formats can be found: JetDB and Digital. Often described as fear or gmod. If you want to find out which format your FGD file belongs to, just click on the button "Choose your .fgd file to analyze".

Technical Data for FGD File Extension

File classification:

Game

Related files:

vmf, bsp, vmt, map, mdl, fdg, rar, pqi, pqo, obj

Mime type:

application/x-director, image/tiff

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: fgd_file
EXEFile: C:\UDEWIN\ude.exe %1

an fgd plain text configuration file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with FGD files

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