What is a TDT file?
A .TDT file is a data or image format used by multiple different software applications. Most commonly, a .TDT file is a PVR thumbnail image. Devices from Topfield create these files to store a preview image of a recorded video. These files often use the standard JPEG format internally.
Other systems also use the .TDT extension. Sony and Panasonic cameras create .TDT files as AVCHD thumbnail files. The Enigma Virtual Box uses .TDT for virtualized application data. Medical systems like the Cadwell Easy III store tab-delimited EEG data in .TDT files.
In niche industries, .TDT represents the FirstBreak Concrete Test File developed by LogicSphere. Other uses include game save files for *Knights and Merchants* or *Sim Tower* by Maxis, THOR Data Tree files from Daylight Chemical Information Systems, and GSM-R trace data files for Triorail terminals.
How to open TDT files?
Because the .TDT extension has multiple possible meanings, it is difficult to know which program to use. You can attempt to rename a thumbnail .TDT file to .JPG and open it with a standard image viewer. If the file contains text data, a code editor like Notepad++ can open it.
viewer.online/tdt analyzes .TDT files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
Summary
viewer.online/tdt directly opens and previews .TDT files in the browser, eliminating the need to install software or troubleshoot compatibility issues.