Extract text from GDT files
To convert your GDT file to another format, you need gretl or other Data software.
To convert other file formats to the "Statistical Data" file type, you need software like gretl or a similar tool.
The .GDT file extension primarily refers to data files created by gretl (Gnu Regression, Econometrics and Time-series Library), an open-source statistical package used for econometric analysis. These files contain datasets consisting of variable definitions, observations, and metadata stored in a specific XML or compressed binary format. While gretl is powerful, the native .GDT format is not directly compatible with ubiquitous tools like Microsoft Excel, SPSS, or RStudio. Users often face friction when sharing research data with colleagues who do not have gretl installed, requiring conversion to universally accepted formats like CSV (Comma-Separated Values) or XLSX for data manipulation, or PDF for static reporting.
A secondary but significant use of the .GDT extension is in the healthcare sector, specifically the Gerätedatentransfer (Device Data Transfer) protocol. This is a standard interface used in German medical practice management systems (PVS) to exchange patient data between software and medical devices (like ECGs or lung function testers). These files are typically plain text but follow a strict structural standard. Technicians and developers frequently need to convert these text streams to clean TXT, JSON, or CSV formats to debug interface errors or migrate data between systems. Other niche uses include game asset definitions for titles like Call of Duty or Ghidra data type archives, which are highly proprietary and generally unsuitable for standard conversion workflows.
Convert.Guru analyzes your GDT file, detects the exact format, and lets you read the text inside.
Users also converted GTD, XLSX, XLS, CSV, XML, PDF, TTP, VTX and GPX files.
If you want to convert GDT file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use gretl or similar software from the "Econometric Analysis Data" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to GDT, try gretl or another comparable tool in the "Econometric Analysis Data" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our GDT converter.