Opening M00 Files

The M00 file type is primarily associated with Leica Geo Office.

M00	File extension: M00
	File type:	data file

What is an M00 file

M00 files mostly belong to Leica Geo Office. M00 files are used by Topcon GNSS receivers to save collected survey data.
This file stores geospatial readings such as coordinates, time stamps, and satellite tracking data.
Key details summarized by FilExt.com:

Primary use: Logging raw data from GNSS field measurements

Secondary use: Facilitating data processing in survey software

The data is handled by programs including Leica Geo Office which processes GNSS information.
FilExt.com note: Some devices may output multiple related files (for example, M00 paired with .M01) to represent different parts of a complete survey session.

How to open an M00 file

You need a suitable software like Leica Geo Office to open an M00 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 M00 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a M00 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online M00 Text Viewer

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Programs that open and convert M00 files:

Leica Geo Office
See the previous paragraphs to learn more about the main application. M00 files are often referred to as Leica Geo Office data files because this type of file is primarily created or used by this software.
Topcon Magnet Office, other GNSS processing software
An M00 file is a raw data file created by a Topcon GNSS receiver. It stores the raw Global Navigation Satellite System (GNSS) data collected by the receiver during a survey. This data includes information from various satellite constellations, such as GPS, GLONASS, Galileo, and BeiDou. The M00 file contains the pseudorange, carrier phase, and Doppler measurements, as well as other relevant information like time stamps and satellite ephemeris data. This raw data is essential for post-processing and analysis using specialized software like Topcon's Magnet Office or other compatible GNSS processing software. The M00 file format is proprietary to Topcon and is designed to be efficient for storing large amounts of high-precision GNSS data. The data within the M00 file is typically converted into other formats, such as RINEX, for further analysis and integration with other geospatial data. This file format is classified as GIS/Mapping File.

M00 file format:

Why is it important to know the file format? This is the only way to find out which program to use to open the file. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. Exact knowledge of the format is therefore important in order to solve problems occurring in files. In the following you will find our evaluation of the M00 files:

The M00 file extension is not found very often and mainly uses a special format. However, the following two file formats are common:

75% of all M00 files use the same file format, which can be identified by the letters "9C AE" at the beginning. These files are binary files, so they do not contain text, but only cryptic characters. The files are on average 350 KB in size and range from 24 KB to 4 MB. The file type is relatively new. The keywords q1r!s are typical for these files. Files like these are sometimes connected to gnssraw, data and gnss.
5% of all M00 files start with the bytes D6 D1 82 0C 22 00 00 00, which are crucial for this file format. They consist of illegible, cryptic characters. The files are 70 MB to 4 GB in size, with a median of 70 MB. Certain words are almost always found in the files, such as assets/default/genericfx/sourceimages/waterdroplets_a_diff.tga.texture. The file name GameAssets.M00 is typical for these files.

All other M00 files (20%) have no uniform format, such as MP4, SSRTF and MLVI. You can get all the details of your M00 file by dragging it onto this page or by clicking the button "Choose your .m00 file to analyze" above.

Technical Data for M00 File Extension

File classification:

Data

Related files:

m01, m02, moo, x01, x02, x22, i00, x06, xcf, mdi, emf, dat, txt, csv

an m00 data file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with M00 files

Associate the M00 file extension with the correct application.
Update your software that should actually open data files. Because only the current version supports the latest M00 file format. Search, therefore, e.g. on the manufacturer website after an available Leica Geo Office update.
To make sure that your M00 file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .M00 file online - secure, fast, and no downloads needed.