LanguagePRJ
Project
File type: Various data file
Files with prj extension can generally be found as project. Used in many programs to save work in progress.
Found 2 different file type records with the same prj filename suffix.
What is prj file?
File type category:
Various data file
Date updated: September 9, 2024
File extension prj is traditionally used for files that contain projects. Projects are works in progress, these can be documents, 3D graphics, music, or pretty much anything that takes some time to create.
Projects contain settings, positions of saved windows, development notes and other raw data that wont be present in the final file.
When a project is finished, it is usually saved or exported to regular format of the program, or some other exchangeable format.
These .prj files are used in many programs, however they are almost always complete different formats and as such, can only be opened in the original application.
How to open prj file?
Use the program from which the *.prj file originated to open and work with it.
How to convert prj file?
Generally speaking, projects can usually be exported to some sort of output / exchange format dependingon the original program. Audio projects export to audio files, video projects to video files etc.
Suggested software to open prj file:
Associated software actions with the prj file
Software applications that can open prj files:
Maestro (Microsoft Windows)
Monarch (Microsoft Windows)
FireFly Visual Designer (Microsoft Windows)
PG4UW (Microsoft Windows)
Stylus Studio (Microsoft Windows)
AIMMS (Microsoft Windows)
Turbo C (Microsoft Windows)
Multi-Edit (Microsoft Windows)
Microsoft Visual Basic (Microsoft Windows)
3ds Max (3D Studio Max) (Microsoft Windows)
Programs for viewing prj files:
AccuTrans 3D (Microsoft Windows)
Software apps that import prj files:
Online 3D Model Converter (On-line services)
Software applications that handle other tasks involving prj files:
Microsoft Visual Studio (Multiplatform)
ArcView Shapefile projections definition file
File type category:
GIS, GPS navigation and map file
Date updated: March 24, 2024
File extension prj is also associated with ArcView Shapefile projection format; the coordinate system and projection information, a plain text file describing the projection using text format.
The projection information contained in the .prj file is critical in order to understand the data contained in the .shp file correctly. Although it is technically optional, it is most often provided, as it is not necessarily possible to guess the projection of any given points. Some typical information contained in the .prj file is:
- Geographic coordinate system
- Datum
- Spheroid
- Prime meridian
- Map projection
- Units used
The ESRI Shapefile is a popular geospatial vector data format for geographic information systems software. It is developed and regulated by ESRI as a (mostly) open specification for data interoperability among ESRI and other software products. A shapefile commonly refers to a collection of files with .shp, .shx, .dbf, and other extensions on a common prefix name (e.g., "lakes.*"). The actual shapefile relates specifically to files with the ".shp" extension, however this file alone is incomplete for distribution, as the other supporting files are required.
Shapefiles spatially describe geometries: points, polylines, and polygons. These, for example, could represent water wells, rivers, and lakes, respectively. Each item may also have attributes, that describe the items, such as the name or temperature.
How to open prj file?
ESRI ArcView should be able to work with this type of .prj files.
How to convert prj file?
Possibly can be exported and saved in ArcView along with with other GIS data.
Suggested software to open prj file:
Associated software actions with the prj file
Software applications that can open prj files:
ArcGIS for Desktop Basic (ArcView) (Microsoft Windows)
Programs for viewing prj files:
ArcGIS for Desktop Basic (ArcView) (Microsoft Windows)
Software apps that import prj files:
QGIS (Multiplatform)
Software applications that handle other tasks involving prj files:
ArcGIS for Desktop Basic (ArcView) (Microsoft Windows)