A daily updated filename extension database!

PRJ file extension

The table below provides useful information about the .prj file extension. It answers questions such as:

  • What is the .prj file?
  • What program do I need to open a .prj file?
  • How can the .prj file be opened, edited or printed?
  • How can I convert .prj files to another format?

We hope you find this page helpful and a valuable resource!

5 extension(s) and 2 alias(es) found in database

✅ General Project File

.prj
Description:
PRJ file is a General Project file. Various programs use this extension for saved project data.
PRJ format description not yet available
Category: Other files
Application: -
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
PRJ aliases:
-
PRJ related links:
-
PRJ related extensions:
-

✅ Steinberg WaveLab Workspace

.prj
Description:
PRJ file is a Steinberg WaveLab Workspace. WaveLab is a digital audio editor by Steinberg aimed at the professional market.
PRJ format description not yet available
Category: Project files
Application: Steinberg WaveLab
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
PRJ aliases:
-
PRJ related links:
-
PRJ related extensions:
Steinberg WaveLab Audio Database

Steinberg WaveLab DVD Audio Project

Steinberg WaveLab Audio Montage

Steinberg WaveLab Basic Audio CD Project

Steinberg WaveLab Basic CD Project

Steinberg WaveLab CD/DVD Label Set

Steinberg WaveLab Backup Plan

Steinberg WaveLab Audio Peak

Steinberg LM-4 Program

Steinberg LM-4 Audio Bank Data

✅ SOCET SET Project File

.prj
Description:
PRJ file is a SOCET SET Project File. SOCET SET is a software application that performs functions related to photogrammetry. It is developed and published by BAE Systems.
PRJ format description not yet available
Category: Project files
Application: SOCET SET
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
PRJ aliases:
-
PRJ related links:
-
PRJ related extensions:
SOCET SET Support File

SOCET SET Triangulation File

SOCET SET Ground Point File

SOCET SET Image Point File

SOCET SET Grid Terrain File

✅ Electric Quilt 3 Project

.prj
Description:
PRJ file is an Electric Quilt 3 Project. Electric Quilt is a quilt pattern design software for Microsoft Windows.
PRJ format description not yet available
Category: Project files
Application: Electric Quilt
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
PRJ aliases:
pj3
PRJ related links:
-
PRJ related extensions:
Electric Quilt 7 Project

Electric Quilt 5 Project

Electric Quilt Mini Project

Electric Quilt 6 Project

Electric Quilt 8 Project

EQStitch Project

✅ ArcInfo Projections Definition Data

.prj
Description:
PRJ file is an ArcInfo Projections Definition Data. ArcInfo is a complete and extensible geographic information system.
PRJ format description not yet available
Category: GIS files
Application: ESRI ArcInfo
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
PRJ aliases:
-
PRJ related links:
-
PRJ related extensions:
ArcInfo Binary Coverage

ArcInfo Band Interleaved by Line Image

ArcInfo Band Interleaved by Line Image

ArcInfo Band Sequential Image

ArcInfo ASCII Export

Geography Markup Language Document

MapInfo Table Document

FME Document

FME Feature Store

SIA dataMap GIS Export

✅ Binary Terrain Data

.bt
Description:
BT file is a Binary Terrain Data. Binary Terrain Format is used for elevation data in the VTP (Virtual Terrain Project) software.
BT format description not yet available
Category: Data files
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
BT aliases:
prj
BT related links:
-
BT related extensions:
Digital Terrain Elevation Data

Helix Toolkit Compressed BT Data

✅ IAR Embedded Workbench Project

.pew
Description:
PEW file is an IAR Embedded Workbench Project. IAR Embedded Workbench is a high-performance C/C++ compiler and debugger tool suite for applications based on 8-, 16-, and 32-bit microcontrollers.
PEW format description not yet available
Category: Project files
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
PEW aliases:
prj
PEW related links:
-
PEW related extensions:
IAR Embedded Workbench Workspace Settings

IAR Embedded Workbench Debugger Settings

IAR Embedded Workbench Window Placement Data

IAR Embedded Workbench Source Browse Information Data

Other types of files may also use the .prj file extension.

🚫 The .prj file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

orj, pdj, pj, pjr, pr, prh, pri, prk, prm, prn, pru, rpj

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Squeak Project
Sun Icon/Cursor
Printer Text File
DataFlex Graphic Device Driver
Migration Wizard Primary IFF File
Primo Emulator Image
Raynen-Qili KnitCAD Pattern Cycle Data
Adobe Premiere Plugin
Tinker Parameter File
TINA Pro Analyses Control Parameter File

🔴 Can't open a .prj file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:

example.prj

To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .prj file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .prj file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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