PAC files: what are they and how do I open them?
Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.
.pac file type #1: Image format of Atari STAD
Graphic images in STAD format from the old Atari ST can be identified by their pac extension.
Further details:
PAC file is a type of image file used by the Atari ST computer system. The Atari ST is a home computer that was popular in the 1980s and early 1990s.
PAC file format was used to store and display graphics on this system. The STAD part refers to ST Advanced Degas, a graphics program used on the Atari ST. So, a PAC file in this context would be an image file created by the ST Advanced Degas program on an Atari ST computer.
Open file with:
XnView MP
A popular utility for viewing and converting graphic files
.pac file type #2: CrossePAC archive
Files with pac extension may also be found as special CrossePAC compressed archives. Some kind of special hardware/software universal format.
Further details:
File extension pac is also used in CrossePAC software for it's default archiver format.
The pac archives created by CrossePAC are specifically designed for portability across a wide range of hardware and software platforms.
CrossePAC supports making archives in any of three formats: Text, ASCII, or Binary.
Open file with:
CrossePAC
A multiplatform compression utility
.pac file type #3: Desperados game archive
Files with pac file extension can also be found as game archives from Desperados computer game.
Further details:
The pac file extension is also related to Desperados, a real-time tactics computer game for Microsoft Windows operating system.
This type of .pac file stores game archive including sounds, music, models, maps, graphics etc.
Open file with:
Desperados: Wanted Dead or Alive
An isometric western tractics game
.pac file type #4: Kodak Photo-CD multi-resolution image
A pac file extension is related to the Kodak Photo-CD multi-resolution image format.
Further details:
The pac file extension is used for a multi-resolution image format developed by Kodak as part of the Photo CD System.
The PAC format was developed by Kodak before JPEG format became official standard. It typically achieves lesser compression rates but has better quality of images.
The pac file can probably be opened in professional photo editing tools, or in Photo-CD program bundled to older Kodak digital cameras.
We are sorry, there is currently no specific software link to open this kind of file.
.pac file type #5: LPAC lossless compressed audio
A pac file extension is related to the LPAC compressed audio file format.
Further details:
The pac file extension is associated with the LPAC compressed audio file format. LPAC is a codec (coder / decoder) for lossless compression of digital audio files.
The pac file stores audio compressed with LPAC codec.
Mime types:
audio/x-pac
Open file with:
Winamp with LPAC plugin
A multimedia player for Microsoft Windows
.pac file type #6: Pacman data
Files with pac file extension can also be found as game files from Pac-Man or Pacman computer games for Atari 2600. Probably old.
Further details:
The pac file extension was also supposedly used by computer game from Namco called Pac-man, originally developed for arcades and Atari 2600 gaming console, latter ported for many other systems.
Open file with:
Pac-man
A legendary arcade game developed by Namco
.pac file type #7: Polistream video subtitle data
Files with pac file extension can also be found as subtitles in Polistream format used by several screen subtitling systems applications for DVD subtitling.
Further details:
The pac file extension is also associated with Screen Subtitling Systems applications for DVD subtitling, Teletext subtitling etc., developed by Polistream.
The pac file contains subtitles stored in a Polistream native subtitle format.
Open file with:
Subtitle Edit
An open source video subtitle editor
.pac file type #8: Proxy automatic configuration
A pac file extension is related to the Proxy automatic configuration format. It is used by various applications.
Further details:
The pac file extension is associated with the Proxy automatic configuration file.
A proxy auto-config (PAC) file defines how web browsers and other user agents can automatically choose the appropriate proxy server (access method) for fetching a given URL.
The pac file contains a JavaScript function FindProxyForURL(url, host). This function returns a string with one or more access method specifications. These specifications cause the user agent to use a particular proxy server or to connect directly.
MIME types:
application/x-ns-proxy-autoconfig
Open file with:
Microsoft Edge
The faster, safer browser designed for Windows 10
.pac file type #9: SB Studio II package
Files with pac file extension can also be found as audio files from SB Studio II software. Seems like somewhat outdated.
Further details:
The pac file extension is also associated with the now discontinued SB Studio II audio software. and used for its default audio format.
The pac file stores audio data in 8 or 16-bits mono sound format, also contains loops, names, collections etc.
Open file with:
Awave Studio
Audio editting software with huge format support