.TDT File Extension

File Type 1

FirstBreak Concrete Test File

Developer LogicSphere
Popularity
4.0  |  7 Votes
Category Data Files
Format Text

What is a TDT file?

File used by FirstBreak, a program that tests the strengths of concrete mixes; contains the test results of concrete batches, including the batch reference, date, test specimen strengths, slump, air content, and temperature.

More Information

TDT files are used for logging concrete tests and providing input into FirstBreak statistical analysis tests. They are stored in a .CSV format.

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Programs that open TDT files

Windows
LogicSphere FirstBreak
Updated February 23, 2010
File Type 2

AVCHD Thumbnail File

Developer Sony and Panasonic
Popularity
3.3  |  8 Votes
Category Video Files
Format N/A

What is a TDT file?

Thumbnail file created by Sony and Panasonic digital camcorders; contains thumbnail stills of recorded video in the AVCHD (Advanced Video Coding High Definition) format; appears in folder when connecting camcorder to computer; not meant to be manually opened.

More Information

TDT files can be found, along with .TID files, in the AVCHDTN folder, which is held within the AVCHD folder, which is held in the Private folder contained within your camcorder.

Common TDT Filenames

THUMB.TDT - Only name of Sony/Panasonic TDT files.

Programs that open or reference TDT files

Windows
Appears in folders in window when connecting Sony/Panasonic camcorder or memory card to computer.
Mac
Appears in folders in window when connecting Sony/Panasonic camcorder or memory card to computer.
Updated November 11, 2013
File Type 3

Sim Tower Game File

Developer Maxis
Popularity
4.0  |  3 Votes
Category Game Files
Format N/A

What is a TDT file?

File created by Sim Tower: The Vertical Empire, a tower construction and management simulator; contains tower gameplay data such as a bank, office, cinema, or hotel; not meant to be manually opened.

More Information

NOTE: Sim Tower was developed for Windows and Macintosh and released in 1994. It is no longer maintained. If you want open the application you will need a DOS emulator such as DOSBox.

Programs that open or reference TDT files

Updated November 7, 2013
File Type 4

THOR Data Tree File

Developer Daylight Chemical Information Systems
Popularity
3.5  |  4 Votes
Category Data Files
Format Text

What is a TDT file?

THOR Data Tree (TDT) file used by THOR-Merlin, a database program used to store and retrieve chemical information; contains data similar to a thesaurus that relates chemical information and concepts.

More Information

TDT files are used to relate information and transmit information between programs that use different languages and terms. They are stored in a plain text format, but are not easily human-readable due to their custom syntax.

Programs that open TDT files

Windows
Daylight THOR-Merlin System
Updated February 23, 2010

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