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Unix unformatted manual page
File type: Text file
Files with 1 file extension can be commonly found on Unix platform and used for some document system.
Found 10 different file type records with the same 1 filename suffix.
File type category:
Text file
Date updated: December 31, 2024
The 1 file extension is associated with the Unix and Unix based operating systems available for various computer platforms developed by AT&T Inc.
This type of .1 file contains unformatted manual page stored in Unix processing document system file format (Roff/nroff/troff/groff).
These documents contains overview of general commands for the Unix operating system.
Example of .1 pages:
chmod.1
mkdir.1
rmdir.1
As far as we know, this file type can be accessed on Unix or perhaps also some Linux distribution system.s
Possibly can be exported to other text or document formats with some app on Unix/Linux platform.
Software applications that can open 1 files:
Microsoft Windows
Apple macOS / Mac OS X
Linux/Unix
Multiplatform
Software applications that can edit 1 files:
Microsoft Windows
Apple macOS / Mac OS X
Linux/Unix
Multiplatform
Software capable of saving 1 files:
Microsoft Windows
Apple macOS / Mac OS X
Linux/Unix
Multiplatform
File type category:
Various data file
Date updated: October 23, 2017
The 1 file extension is used by AIM AOL Instant Messenger instant messaging client. The .1 file contains various data used for internal purposes of the AIM instant messenger. Similar files can be numbered from .1 to .999.
It is not meant to be opened manually by the user.
The files with 1 extension are not convertable.
Software applications that handle other tasks involving 1 files:
Microsoft Windows
AOL Instant Messenger (AIM)
File type category:
Various data file
Date updated: December 27, 2018
The 1 file extension is associated with the Screen full-screen window manager that multiplexes a physical terminal between several processes.
The .1 file contains saved log data with information about running processes.
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
Software applications that handle other tasks involving 1 files:
Linux/Unix
File type category:
Temporary file
Date updated: December 25, 2024
The 1 file extension is associated with the Google Android, an operating system for smart phones, tablets and other smart devices.
The 1 file stores cached data used by system, or Android apps.
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
Software applications that handle other tasks involving 1 files:
Google Android
File type category:
Binary file
Date updated: January 2, 2019
The 1 file extension is associated with the Inno Setup, a free application used to create Windows application installation packages. The .1 file contains binary data used in an installation process of an application.
This file type cannot be opened manually, you need to initiate the whole installation procedure to access the data.
You cannot generally convert installation files to anything else.
Software applications that can open 1 files:
Microsoft Windows
Software apps that create 1 files:
Microsoft Windows
Software apps that extract 1 files:
Microsoft Windows
File type category:
Internet related file
Date updated: June 27, 2025
File extension 1 is associated with the Mozilla Firefox and Netscape Navigator web browsers.
This type of .1 files is used for cookie, image, popup permissions files. It is used in earlier versions of these browsers.
Likely can only be accessed using Mozilla Firefox and maybe only in particular (older) versions.
As far as we could tell, no conversion for .1 files is possible.
Software applications that handle other tasks involving 1 files:
Microsoft Windows
Netscape Navigator
File type category:
Backup file
Date updated: March 16, 2017
File extension 1 is also associated with the Pro/ENGINEER (Creo Elements/Pro) 3D CAD/CAM/CAE modeling software.
A .1 file contains backup of Pro/ENGINEER data used as a prevent against computer crash.
It appears that these files are automatically loaded in Pro/ENGINEER in case the computer does crash, they are not meant to be opened directly bt the user.
A conversion of any kind for .1 backup files is highly unlikely.
Software apps that backup 1 files:
Microsoft Windows
Software apps that recover 1 files:
Microsoft Windows
File type category:
Archive and compressed file
Date updated: November 6, 2018
The 1 file extension is associated with the Stuffit compression utility for Mac and Windows also older versions are available for Linux and Solaris.
The 1 file contains the first part of Stuffit split archive.
Use Stuffit to open *.1 archive files.
Probably cannot be converted to other formats.
Software applications that can open 1 files:
Microsoft Windows
Apple macOS / Mac OS X
Software apps that create 1 files:
Microsoft Windows
Apple macOS / Mac OS X
Software apps that extract 1 files:
Microsoft Windows
Apple macOS / Mac OS X
File type category:
Emulator file
Date updated: January 3, 2019
The 1 file extension is associated with the Super Nintendo ROM image file format used by various SNES emulators such as Snes9x.
This type of .1 files contains the first part of the split ROM image. To open split ROM you need to have all parts of it.
Use Snes9x to open *.1 Super Nintendo ROM files.
You cannot usually convert this type of ROM images, unless some emulation software supports transfer between different emulators.
File type category:
Archive and compressed file
Date updated: May 17, 2012
The 1 file extension is associated with The File Splitter utility used to split any data into pieces of any size and restore pieces back to original file. The .1 file contains the first part of split file created by The File Splitter.
Software apps that create 1 files:
Microsoft Windows
The File Splitter
Software apps that recover 1 files:
Microsoft Windows
The File Splitter
Software applications that handle other tasks involving 1 files:
Microsoft Windows
The File Splitter
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