Opening a GMP File

The GMP file type is primarily associated with Global Mapper.

GMP	File extension: GMP
	File type:	package file

What is a GMP file?

GMP files mostly belong to Global Mapper by Blue Marble Geographics. GMP stands for Global Mapper Package data file. GMP files are used as data package files generated with the Global Mapper application developed by Blue Marble Geographics.

Main Use: Global Mapper is a GIS application that enables users to visualize and convert vector, raster, and elevation data besides providing access to a huge variety of spatial datasets. The GMP files consist of map data taken from imported layers as well as all the configuration settings and modifications applied to the layers. The GMP file aids in facilitating efficient data transfer amongst Global Mapper users. The file is also beneficial for generating dataset backups that become important in the event the data is lost or hardware failure.
Other Uses: Geomorph, a height field generator cum editor that is compatible with Linux machines uses GMP files to store tile map data necessary for program usage. GMP files are also used in Grant Theft Auto 2 and Railroad Tycoon 3 action shooter computer games that can be installed on Microsoft machines like Windows PCs, Sony Playstation, and Dreamcast to store game data. GMP files are linked with the GroupMail application, a messaging application that gives the users, ability to store user contact data.

How to open a GMP file

You need a suitable software like Global Mapper to open a GMP 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 GMP file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a GMP file directly in the browser:. Just drag the file onto this browser window and drop it.

Online GMP Text Viewer

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Programs that open and convert GMP files:

Global Mapper by Blue Marble Geographics
See the previous paragraphs to learn more about the main application. GMP files are often referred to as Global Mapper gis because this type of file is primarily created or used by this software.
Geomorph (tile map file) by SourceForge
Geomorph is a topographic map generator only available on the Linux operating system, where it creates square 2D images of 3D landscapes, allowing for them to be processed and rendered like a regular landscape image. The GMP file contains tile map data, however, it is largely obsolete in regards to this program. This file format is classified as Data.
Grand Theft Auto 2 (game file) by Rockstar Games
Grand Theft Auto 2 is an action-shooter and car racing game initially developed for Windows computers and Sony consoles. It is situated around completing levels that consist of criminal tasks whilst avoiding the authorities. The GMP file utilized within this game contains a variety of game data, however, it is unknown as to the specific type of data each GMP file contains. This file format is classified as Game.
GroupMail (list information file) by Infacta Ltd.
GroupMail is a Windows program that allows emails, newsletters, advertisements, and other documents to be sent to large quantities of receivers simultaneously, where they are primarily sent for marketing purposes. It is unknown what type of data the GMP files store within GroupMail. This file format is classified as Data.
GUEmap (document file) by Christopher J. Madsen
GUEmap is a Windows software for mapping and creating interactive fiction games, created by Christopher J. Madsen. The GMP file stores map documents which are utilized by the GUEmap program. This file format is classified as Data.
Railroad Tycoon 3 (saved game files) by PopTop Software Inc.
Railroad Tycoon 3 is a computer game developed by PopTop Software Inc., situated around experiencing railroading from the Golden Era up until the modern-day, allowing the user to create railroads at their discretion. The GMP files contain scenario or saved game files which are frequently used within the game. This file format is classified as Game. Related links: Railroad Tycoon 3 on Steam

GMP file format:

The file format, which is the arrangement and type of data in a file, determines which program can open the file. The file format can be determined based on the file extension and the signature (the first few characters of a file). If the file extension or signature does not match the file format, errors will occur when opening or editing the file. When there is a problem with a file, the first step to solving it is to determine the file format. In the following you will find our evaluation of the GMP files:

As a file extension, GMP isn't very common and is used by a few programs, each with its own file format. But the following two file formats are common:

20% of all GMP files have the same signature 3D 00 47 41 52 4D 49 4E 20 47 4D 50 01. These are binary files, so they do not contain words or text. GMP files can be up to 99 MB in size, but are often around 570 KB - 10 MB. This file type is based on cutting-edge technology. The keywords GARMIN GMP, Copying is expressly prohibited and may result in criminal charges and/or and Copyright Garmin Ltd. or its subsidiaries. All rights reserved are typical for these files.
15% of all GMP files have the same signature GIGA ElectronicsOCRP, Copyright Reserved. . If you open these files in a text editor, you will see only illegible characters. A typical file size is 59 MB. The following keywords are characteristic: GIGA ElectronicsOCRP, Copyright Reserved and YYoob[. An example of a file name is BK20180601.GMP or OPEN.gmp.

All the rest of the GMP files (65%) have different formats, frequently e.g. GUEmap document, Unreal, XML and Setting. Files like these are sometimes linked to island, grph, select, lobby or zork. If you want to find out what your GMP file contains, drag and drop it onto this page.

Technical Data for GMP File Extension

File classification:

GIS

Related files:

png, avi, xcf, jpg, gml, gmw, ipk, deb

a gmp package file is a special file format by Blue Marble Geographics and should only be edited and saved with the appropriate software.

How to solve problems with GMP files

Associate the GMP file extension with the correct application.
Update your software that should actually open package files. Because only the current version supports the latest GMP file format. Search, therefore, e.g. on the Blue Marble Geographics manufacturer website after an available Global Mapper update.
To make sure that your GMP file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
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