FILExt - The File Extension Source

Details for file extension .1 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 11 record(s).

Click here to run a FREE scan for .1 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: 1
Program and/or Extension Function [What's This?]		Company [What's This?]
(1..Any Number) Might be Part of a Version Number
Specific Notes [What's This?]
e.g., OpenOffice.org1.0.1 ..... [Search for 1 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 13720 last modified on 2003-01-14.

Extension: 1
Program and/or Extension Function [What's This?]		Company [What's This?]
Inno Setup Binary File
Specific Notes [What's This?]
(None) ..... [Search for 1 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 144 last modified on 2003-01-14.

Extension: 1
Program and/or Extension Function [What's This?]		Company [What's This?]
Mozilla (Netscape) Cookie, Image, Popup Permissions		Mozilla.org
Specific Notes [What's This?]
This information was stored in the file COOKPERM.TXT in earlier versions. ..... [Search for 1 file errors with this scan.]
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
	Text	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 17756 last modified on 2005-01-20.

Extension: 1
Program and/or Extension Function [What's This?]		Company [What's This?]
Pro/ENGINEER Backup File		PTC
Specific Notes [What's This?]
Pro/ENGINEER is a 3D product design product, featuring productivity tools that promote best practices in design while ensuring compliance with your industry and company standards. Pro/ENGINEER adds numbers after a file name when you change the file so that you can revert to older saved versions. It is known to do this with .PRT files and may add similar numbered extensions to other files created by it as well. ..... [Search for 1 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 17286 last modified on 2007-05-05.

Extension: 1
Program and/or Extension Function [What's This?]		Company [What's This?]
Roff/nroff/troff/groff Manual Source (UNIX)
Specific Notes [What's This?]
(None) ..... [Search for 1 file errors with this scan.]
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
application/x-troff-man		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 145 last modified on 2003-06-22.

Extension: 1
Program and/or Extension Function [What's This?]		Company [What's This?]
Screen Log File
Specific Notes [What's This?]
Screen is a full-screen window manager that multiplexes a physical terminal between several processes, typically interactive shells. The log file is written to the current directory under the name screenlog.#, where # is incremented by one for each new log. ..... [Search for 1 file errors with this scan.]
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
	Text	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 20096 last modified on 2006-08-23.

Extension: 1
Program and/or Extension Function [What's This?]		Company [What's This?]
Stuffit Archive File		Aladdin Systems, Inc.
Specific Notes [What's This?]
Likely part of a split archive and found among similarly-named files with extension .2, .3, or higher. Program: STUFFIT.EXE ..... [Search for 1 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 16245 last modified on 2004-03-20.

Extension: 1
Program and/or Extension Function [What's This?]		Company [What's This?]
Super Nintendo Multi-part Game-console ROM Image (1, 2, 3, etc.)		Nintendo
Specific Notes [What's This?]
(None) ..... [Search for 1 file errors with this scan.]
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
	Game	ZNES SNES9x Emulator Zone Emulation Newbies Start Here!
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 13721 last modified on 2007-08-26.

Extension: 1
Program and/or Extension Function [What's This?]		Company [What's This?]
The File Splitter Split File Portion		Dekabyte
Specific Notes [What's This?]
The File Splitter is a free Windows program that will split any file into pieces of any size and later combine the pieces to form the original file. An associated .EXE file is also created to join the parts. Subsequent file parts are sequentially numbered (e.g. *.2, *.3, etc.). ..... [Search for 1 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 18045 last modified on 2005-04-16.

Extension: 1
Program and/or Extension Function [What's This?]		Company [What's This?]
Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
Specific Notes [What's This?]
Likely part of a multi-part archive. ..... [Search for 1 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 20506 last modified on 2007-03-20.

Extension: 1
Program and/or Extension Function [What's This?]		Company [What's This?]
WebOutfitter Service Verification Utility		Intel
Specific Notes [What's This?]
(None) ..... [Search for 1 file errors with this scan.]
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
application/x-intel-icvu-1-0-2-1		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 15254 last modified on 2003-09-27.

System Info for File Extension .1

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.

Program Name and MIME Type Info for File Extension .1

FILExt has been given permission to display a Program Name/MIME type database collected by Anthony R. Nemmer. 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. Be aware this is raw data which may require further research on your part to fully understand. MIME type listings often contain the name of a program or, at a minimum, a type of file as the leading text in the MIME type.

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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