FILExt - The File Extension Source

Details for file extension .GCF are on this page. Because there is no central registry for file extensions and their associated programs there may be multiple entries on this page. And, because there are many (some say over a million) such associations not all may be listed here. A search on the file extension you submitted shows 7 record(s).

Click here to run a FREE scan for .GCF related errors.

The details for each of these are shown below. The best FILExt can do for you is provide the details we know about. Selecting the information that applies to your particular situation is up to you. Use any hints provided. If the information here is not helpful, FILExt is sorry; but as a research site FILExt cannot provide personal support. If you need further information you might try the research tips on the FILExt Help Me page.

Extension: GCF
Program and/or Extension Function [What's This?]		Company [What's This?]
Global Virtual Accademy GVA XT Author File
Specific Notes [What's This?]
[Korean site] [Search for GCF file errors with this scan.]
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
		None
Identifying Characters [What's This?]
(None or Unknown)
Program ID [What's This?]
(None or Unknown)
General Notes [What's This?]
(None)
This is record 17698 last modified on 2005-01-01 and created on 2005-01-01.

Extension: GCF
Program and/or Extension Function [What's This?]		Company [What's This?]
Graphing Calculator		Pacific Tech
Specific Notes [What's This?]
Graphing Calculator is a tool for quickly visualizing math. [Search for GCF file errors with this scan.]
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
		None
Identifying Characters [What's This?]
Hex: 47 72 61 70 68 69 6E 67 43 61 6C 63 75 6C 61 74 6F 72 20 ASCII: GraphingCalculator
Program ID [What's This?]
(None or Unknown)
General Notes [What's This?]
(None)
This is record 18552 last modified on 2005-09-05 and created on 2005-09-05.

Extension: GCF
Program and/or Extension Function [What's This?]		Company [What's This?]
Greeting Card Creator Project		ArcSoft
Specific Notes [What's This?]
A greeting card creation program. The listing for the program is in the clearance area of the ArcSoft website and so may not be sold much longer. [Search for GCF file errors with this scan.]
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
		None
Identifying Characters [What's This?]
Hex: D0 CF 11 E0 A1 B1 1A E1 00 ASCII: .........
Program ID [What's This?]
(None or Unknown)
General Notes [What's This?]
(None)
This is record 25771 last modified on 2008-09-21 and created on 2008-09-21.

Extension: GCF
Program and/or Extension Function [What's This?]		Company [What's This?]
Half-Life Game Cache File		Sierra Entertainment, Inc.
Specific Notes [What's This?]
Read and export these files with Nem's GCFScape. [Search for GCF file errors with this scan.]
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
		Support Knowledgebase
Identifying Characters [What's This?]
(None or Unknown)
Program ID [What's This?]
(None or Unknown)
General Notes [What's This?]
(None)
This is record 15623 last modified on 2006-10-15 and created on 2004-01-04.

Extension: GCF
Program and/or Extension Function [What's This?]		Company [What's This?]
Scream! Guralp Compressed Format		Güralp Systems Ltd.
Specific Notes [What's This?]
Scream! is a Windows 9x/NT/2000/XP application for Seismometer Configuration, REal time Acquisition and Monitoring. This file type consists of seismic data records in time series format. [Search for GCF file errors with this scan.]
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
		None
Identifying Characters [What's This?]
(None or Unknown)
Program ID [What's This?]
(None or Unknown)
General Notes [What's This?]
(None)
This is record 17871 last modified on 2005-02-09 and created on 2005-02-09.

Extension: GCF
Program and/or Extension Function [What's This?]		Company [What's This?]
Valve Game Cache File		Valve Corporation
Specific Notes [What's This?]
Originally an acronym for Grid Cache File (Grid was an early codename for Steam), GCF is now commonly taken to mean Game Cache File. GCF's are the name of the single files in which Steam games are stored and official content is downloaded. [Search for GCF file errors with this scan.]
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
	Game	Valve Developers GCF Wiki GCFScape - A GCF Unzipper
Identifying Characters [What's This?]
(None or Unknown)
Program ID [What's This?]
(None or Unknown)
General Notes [What's This?]
(None)
This is record 25302 last modified on 2008-07-08 and created on 2008-07-08.

Extension: GCF
Program and/or Extension Function [What's This?]		Company [What's This?]
WinXComp Grouped Compressed File
Specific Notes [What's This?]
WinXComp was made by OptionSoft who seem to have gone out of business. Also known as OptionSoft WindowsXCompressor archive. [Search for GCF file errors with this scan.]
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
	Archive	The File OSU50.ZIP
Identifying Characters [What's This?]
Hex: 4A 47 43 46 00 00 00 20 01 ASCII: JGCF
Program ID [What's This?]
(None or Unknown)
General Notes [What's This?]
(None)
This is record 4948 last modified on 2003-12-17 and created on 2003-01-14.

System Info for File Extension .GCF

FILExt has been given permission to display the file extension database produced by the Associate This! program. Some of that data has already been included into the main FILExt database; but, not all. Those entries which have not yet been incorporated are shown below in the hope that they will be of some use. Data collected by FILExt on registered file extensions from user systems is also in the display. Be aware this is raw data which may require further research on your part to fully understand. In particular, look at the Program ID. Often a company will put the program's name into the short ID that Windows uses to open registered file extensions. If that's not the case, look at the complete path to the EXE file. Often, programs will install themselves into directories that give either the program or company name. The program name itself may also be used as the EXE file name. These listings are particularly important since they represent listings that are in actual use by users who have sumbitted data to FILExt and therefore these listings can point you to the most likely candidate should there be multiple entries in the FILExt main database.

General Info

• If the extension you are looking for is of the form .??_ the file is likely a compressed file and part of an install routine. When the install program runs it will expand the file and replace the underscore with the proper letter for the file type.
• If the file is sent as an audio file with any three-character extension it may be a dictation file where the extension is the dictator's initials; playable by BCB Voice Systems software (see ??? extension). The file could likewise be a dictation file in TrueSpeech format. Use Windows Sound Recorder and/or Media Player to play these back.
• If the extension you are looking for has a number at the end or is only a number and there were no results consider entering the same extension format using zero or one as some programs produce numbered split files but when the split can be extensive (e.g., .000-.999) only the first entry is in the database.

Need more information about any entries on this page? Try a Google search using terms in the above information along with words like "format," "convert," "conversion," and even "hacking." A search box is provided here for your convenience.

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