Opening a GPM File

The GPM file type is primarily associated with Global Mapper.

GPM	File extension: GPM
	File type:	project

What is a GPM file?

GPM files mostly belong to Global Mapper. The GPM extension is not tied to one single format but can refer to one of several distinct file types.
For many users, the primary variant is the GeoMapProject file. This file stores mapping data in a JSON structure. It contains map configuration details such as layers, coordinates, and other GIS settings. More details about this variant can be found on the related webpage: Vertigis Studio.
Other uses for the GPM extension include:

Genesys Package File: This version uses a ZIP structure to bundle project or timeline data. It is associated with GeneXus technology and may serve as an Aeon Timeline data file. For more information, visit GeneXus.

Guitar Pro music score: Here, the file holds music notation data and is sometimes called a GPS TrackMaker File. It is used with music scoring applications. Additional details are available at Guitar Pro.

FilExt.com tip: Because the same extension can represent different internal structures, reviewing the file’s content (for example, checking if it is plain JSON text or a compressed ZIP archive) can indicate which application is needed to open and view it.

How to open GPM files

You need a suitable software like Global Mapper to open a GPM file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your GPM file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a GPM file directly in the browser:. Just drag the file onto this browser window and drop it.

Online GPM Text Viewer

Choose your .gpm file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert GPM files:

Global Mapper
See the previous paragraphs to learn more about the main application. GPM files are often referred to as Global Mapper gis because this type of file is primarily created or used by this software.
Crossword Puzzle
The identifying characters used for this association are - Hex: 1A 32 30 43 57 50 55 5A, ASCII: .20CWPUZ.

Technical Data for GPM File Extension

File classification:

GIS

Identifier:

Hex: 1A 32 30 43 57 50 55 5A, ASCII: .20CWPUZ (provided by TrID database)

Related files:

gpx, map, gp5, mus, gma, mid, pgm, gbc, zip, pzl, xbw, json, xml

Mime type:

application/octet-stream

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: CSSGSMBrowser.Document
EXEFile: %ProgramFiles%\Motorola\PST\UT_NVM.exe

a gpm project is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with GPM files

Associate the GPM file extension with the correct application.
Update your software that should actually open projects. Because only the current version supports the latest GPM file format. Search, therefore, e.g. on the manufacturer website after an available Global Mapper update.
To make sure that your GPM file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .GPM file online - secure, fast, and no downloads needed.