All about TGD Files

The TGD file type is primarily associated with TachoReader.

TGD	File extension: TGD
	File type:	data file

What is a TGD file

TGD files mostly belong to TachoReader. A TGD file extension is used for several types of data files that store information from specialized equipment. The most common use is to save data from tachograph devices, which record driving parameters such as speed, distance, and driver activity. In this context, the files are used by systems like TachoReader, SMRDTool, or tools from Topcon Tools.
Other versions of TGD files include those created by TouchGFX Designer for human‐machine interface (HMI) projects, telemetry or traffic data files, gaze data files from eye tracking experiments (used by Tobii Studio – see Tobii), and even trend graph data in XML format for analysis tools like SPEDAS (learn more).
Key details as outlined by FilExt.com:

They can use different internal formats such as binary, Microsoft Compound, or XML depending on the source.

Proper software is needed to open and interpret the file content accurately.

Checking the file header with a text or hex editor can help identify its origin if the file does not open with a standard program.

How do you open TGD files?

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

Online TGD Text Viewer

Choose your .tgd file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert TGD files:

TachoReader
See the previous paragraphs to learn more about the main application. TGD files are often referred to as TachoReader data files because this type of file is primarily created or used by this software.
Digital Tachograph (Spanish Binary Data) by Ministerio de Fomento (Spain)
As of last 5 August, 2005, all vehicles weighing more than 3.5 or which can transport 9 or more persons, including the driver, (except for certain exceptions) and which are registered for the first time must install a digital tachograph. These are files from the device. The file is uploaded to an aplication resident in the Ministerio de Fomento website and the content is displayed in human-readable format.
Nimbus 7 SAMS Data File
(gridded temperature data)
Terragen (2 Technology Preview 1 World File) by Planetside Software
Terragen is a work-in-progress scenery generator for Windows and the Mac OS. This file contains all information formerly found in .TGW, .TER files in the original Terragen. It will only work with Terragen 2 Technology Preview 1. The identifying characters used for this association are - Hex: 3C 74 65 72 72 61 67 65 6E 0D 0A, ASCII: <terragen . This file format is classified as Graphic.

TGD file format details:

If you know the file format, you can also find out how to open or edit the file. Often, the file format can be deduced from the file extension or the initial bytes (called the signature). However, different programs can use the same file extension. Furthermore, a file extension can be renamed incorrectly and double-clicking on it will then display an error when it is opened. So a detailed analysis of a file is vital in order to determine the format and the associated program. Below is our analysis of the TGD files:

TGD is not that commonly used as a file extension. This file type covers different formats for different programs. The two most common formats are as follows:

45% of all TGD files start with the bytes 00 02 00 00, which are crucial for this file format. The contents of these files cannot be read by a human; only a computer program can interpret the data. The file size is in the range of 26 KB to 67 KB. The file type is relatively new. The files contain the following words: EFNMT.
25% of all TGD files use the same file format, which can be identified by the letters "76 01" at the beginning. These files are not plain text files, so they also contain binary data. TGD files can be up to 260 KB in size, but are often around 24 KB - 210 KB.

All other TGD files (30%) have different formats, frequently e.g. Terragen project and DOC. You can get all the details of your TGD file by dragging it onto this page or by clicking the button "Choose your .tgd file to analyze" above.

Technical Data for TGD File Extension

File classification:

Data

Related files:

cmp, tac, tgx, hmi, ddd, zip, txt, aab, xml, dat, log

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

How to solve problems with TGD files

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