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The File Extension Library

What is a file extension?

Short answer: it's the set of letters after the period (.) in the name of a file.

Long answer: File extensions signify the file format of a file. It tells the operating system (OS) how data was stored in the file. Not all OS, require a file extension though. For instance, this is optional in Unix, but is mandatory with MS-DOS and Windows systems.

In most file formats the file type is actually defined by the contents (first bytes, file structure), but extensions are used to define the application that is used for opening the file.

Below is a detailed database of thousands of file extensions our team has compiled for you. Feel free to browse!


Browse all Extensions:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
GRD - Extension Details
Date Added: March 11, 2008
File Extension:  .GRD
Description 1: .GRD file extension is linked with Gradebook Power Config File. It is the file extension required by the config file utilized by Gradebook Power Software for teachers. Gradebook is an application especially designed for teachers and offers the following features: creates more than 40 teacher, student and administrative reports, seating charts and attendance; supports block schedule, traditional and trimester academic school years; allows: multiterms per semester, number/letter grades, citizenship/conduct grades, numerical and text comments, nongraded assignments, discard lowest scores, user categories and optional ID numbers. .GRD file extension and Gradebook Power are developed and owned by WISCO Computing.
Description 2: .GRX file extension is linked with Drivers for GRX. It is the device driver file utilized by GRX 2D graphics library. GRX supports DOS [using DJGPP ver. 2 compiler], X11, Linux Console, and Win32 [using Mingw compiler]. GRX running on: DOS supports VGA, EGA and VESAcompliant cards; on Linux Console it utilizes framebuffer or svgalib; on X11 it must work on later systems such as X11R5. GRX ver. 2.4 comes with its own Win32 driver. .GRX file extension and GRX are owned and developed by Csaba Biegl.
Description 3: .GRD file extension is linked with The RockWorks Data File. This is the file extension for the data file generated/utilized by RockWorks a program which is particularly designed and has set the standard in the petroleum, geotechnical, mining, and environmental industries for subsurface data visualization. It provides users with essential tools such as logs, maps, cross sections, volumetrics, fence diagrams and solid models. This application uses the GRD file to store regularlyspaced XYG data that is used in contour maps and 3D surfaces in ASCII format. RockWorks is owned and developed by RockWare Inc.
Description 4: .GRD file extension is linked with StrongDisk Encrypted Disk Image. This file extension is utilized to store encrypted information in image files. StrongDisk Pro is an application which is designed for personal and business usage, for USB flash dives and laptops. Each StrongDisk Pro offers strong data encryption protection. .GRD file extension and StrongDisk Pro are owned and developed by PhyTechoft Ltd.
Description 5: .GRD file extension is linked with Golden Software Surfer File. This is the file extension utilized by Golden Software Surfer a fullfeature 3D surface modeling package which offers users sophisticated interpolation engine which transforms scattered x, y, z data into publicationworthy maps. This application also allows users to create contour, shaded relief, vector, 3D wireframe maps, images, post and others.
File Type:   Data File
Mode: ASCII
Program(s) to Open:  Windows & Mac: Golden Software Surfer
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