Opening a GDT File

The GDT file type is primarily associated with gretl.

GDT	File extension: GDT
	File type:	data file

What is a GDT file

GDT files mostly belong to gretl. GDT files are not tied to one single format. They are used by different applications to store structured data.
For example, in the gretl environment (gretl project), a GDT file usually holds econometric data. This version may use GZIP compression or XML formatting.
Other uses include:

A graph data file from applications like GraphPad Prism or Graphtec.

A game data file seen with titles such as Harry Potter and the Chamber of Secrets or assets managed by modding tools (e.g., for Call of Duty and Grand Theft Auto modifications).

A German medical data format produced by EUROLabOffice.

A geodatabase template used with Microsoft Access and similar software.

FilExt.com note: Each variant serves to hold and organize data relevant to its field. To open a GDT file, it is best to use the original software or a compatible viewer that recognizes its internal structure.

How to open GDT files

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

Online GDT Text Viewer

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Programs that open and convert GDT files:

gretl
See the previous paragraphs to learn more about the main application. GDT files are often referred to as gretl data files because this type of file is primarily created or used by this software.
Genbox Family History (Dictionary) by Thoughtful Creations
Genbox Family History offers you tools for your genealogy project. Family tree charts, genealogy research reports, search, media, full source citations, and more. The identifying characters used for this association are - Hex: 47 42 4F 58 44 49 43 54, ASCII: GBOXDICT.
Guitar & Drum Trainer (Song Configuration File) by Renegade Minds
Guitar & Drum Trainer is an MP3 audio player that helps you to be the best musician that you can be. GDT files store song settings including loop, EQ, volume, pitch shift, music speed, audio FX settings, and other Guitar & Drum Trainer settings. Loading GDT files restores the song settings for a song and load the song file, MP3, WAV, OGG and supported formats. GDT files are only supported since Guitar & Drum Trainer v2.3. The Mime types used with this association are: application/xml. This file format is classified as XML.

GDT file format details:

If you can determine the file format, the associated program can also be determined. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. File extension, signature and file format must match; otherwise errors will occur when the file is opened. So you need a detailed analysis of a file to find out the format and the associated program. In the following you will find our evaluation of the GDT files:

An GDT file is used by a few programs, each with its own file format. The following file formats are most commonly found in GDT files:

25% of all GDT files are using the well-known GZIP file format to store the data. Gzip is a compressed archive file format. Gzip (GNU zip) is only capable of compressing a single file. These files are binary files, so they do not contain text, but only cryptic characters. The files are often between 1 KB and 86 KB in size. The file type was created 10 years ago, but is still used today. A usual file name is Assignment1.gdt. Files like these have the following tags: data and firms.
15% of all GDT files are gretl Data files, which are using the popular XML file format. The Extensible Markup Language (XML) is a simple text-based format for representing structured information: documents, webpages, data, configuration, books, transactions, invoices, and much more. XML defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. The contents of these files are easily readable with a text editor. Most of these files are 1 KB to 14 KB in size. Certain words are almost always found in the files, such as <!DOCTYPE gretldata SYSTEM "gretldata.dtd">, frequency, endobs, startobs, type, <?xml version="1.0" encoding="UTF-8"?>, name, cross-section, <description>, <gretldata version="1.3" and time-series. The file name Table_1.1.gdt is typical for these files.

All other GDT files (60%) have different formats, the following 9 formats exist: DOC, Java and Untitled. They are often associated with sample, egain or unter. Just click the "Choose your .gdt file to analyze" button on this page to find out what your GDT file is.

Technical Data for GDT File Extension

File classification:

Data

Identifier:

Hex: 47 42 4F 58 44 49 43 54, ASCII: GBOXDICT (provided by TrID database)

Related files:

gdf, gtab, dds, gdtb, gtd, gz, dgt, uir, rar, zip, xlsx, gco, gro, xml, json, mdb

Mime type:

application/xml

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: GretlDataFile
EXEFile: c:\userdata\gretl\gretlw32.exe %1

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

How to solve problems with GDT files

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