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4 File Associations

.PAC File Extension

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File Type
This file is saved in a plain text format.
Therefore, you can view the contents of the file in a text editor.
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Proxy Auto-Config File
DeveloperNetscape
Popularity
4.0 (1 Vote) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryWeb Files
File Format Description

Configuration file used by Web browsers to select an appropriate proxy server; contains a JavaScript function named FindProxyForURL that defines rules for choosing a proxy server based on a given URL; used for controlling and load-balancing Internet traffic, especially in corporate environments.

PAC files are enabled in Web browsers by entering the PAC file URL in the proxy connection settings, or by using the Web Proxy Auto-Discovery (WPAD) protocol. When executed, a PAC file returns a string with one or more proxy server URLs.

PAC files typically are hosted on a Web server and are named proxy.pac.

NOTE: Since PAC files contain JavaScript code, they may be edited with a text editor.

Program(s) that open .PAC files
Updated 2/24/2010

PAC Subtitles File Icon
File TypePAC Subtitles File
DeveloperScreen Subtitling Systems
Popularity
3.0 (1 Vote) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryVideo Files
File Format Description

Proprietary subtitles format created by Screen Subtitling Systems; used for synchronizing closed captions with a video timeline; can be edited with subtitle editing software such as EZTitles and converted to more standard formats, including .SRT and .SUB.

Program(s) that open .PAC files
Updated 6/27/2012

Generic Icon
File TypeSBStudio II Song File
DeveloperSonicSpot
Popularity
2.0 (1 Vote) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryAudio Files
File Format Description

Song format, called a PAC or package file, used by SBStudio; made up of data blocks that store song information and audio data.

Program(s) that open .PAC files
Microsoft Windows Logo
Windows
Icon SBStudio II
FMJ-Software Awave Studio Icon FMJ-Software Awave Studio
Updated 2/24/2010

Generic Icon
File TypeSTAD Graphic File
DeveloperSTAD
Popularity
1.0 (1 Vote) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryRaster Image Files
File Format Description

Image format used by the STAD program for Atari ST systems; saved as a black and white image with a resolution of 640x400 pixels; considered a high-resolution graphic for Atari computers.

Program(s) that open .PAC files
Microsoft Windows Logo
Windows
XnViewMP Icon XnViewMP
Updated 2/24/2010