.PRX File Extension

File Type 1

PSP Plugin File

Developer Sony
4.1  |  37 Votes
Category Game Files
Format N/A

What is a PRX file?

Data file used for updating the firmware of the PlayStation Portable (PSP); can upgrade custom firmware and may be included with firmware dumps; often used to add extra features such enabling screen captures and adding Flash support to the Web browser.

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Programs that open PRX files

AceHack PRX Installer
WeeJeWel's PRX Manager
Updated August 4, 2007
File Type 2

Primavera P3 Compressed Project File

Developer Oracle
3.7  |  18 Votes
Category Data Files
Format Binary

What is a PRX file?

Project planning file archive created by Primavera P3, a project planning software often used for construction projects; saves a collection of .P3 files but in a compressed format; used for archival purposes or for sharing project plans with other Primavera users.

More Information

You can restore a PRX file to the original P3 files by renaming the ".prx" extension to ".exe" (which changes the file to a self-extracting .EXE file) and then opening the EXE file to extract the P3 files.

NOTE: Primavera P3 was originally developed by Primavera Systems, who was acquired by Oracle. The P3 software, originally released in 1994, was discontinued December 31, 2010.

Programs that open PRX files

Updated July 7, 2011
File Type 3

Windows Media Profile File

Developer Microsoft
3.4  |  29 Votes
Category Settings Files
Format XML

What is a PRX file?

XML file used by Microsoft Windows multimedia programs for publishing digital video files; stores the audio and video codecs to use, as well as the target bit rates and language; used for publishing videos with the same formatting and quality.

More Information

PRX files are referenced by several Microsoft Windows programs, including Windows Media Player, Windows Media Encoder, and Windows Live Movie Maker. They may be edited using the Windows Media Profile Editor, which is included with the Windows Media Encoder installation.

Media profiles are supported by Windows Media Player 9 and later.

Programs that open or reference PRX files

Updated August 6, 2015

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