There are 3 file types use the .TDL file extension:
1. MathType Translator Definition Language

- Developer N/A
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Popularity
- Category Misc Files
- Format N/A
Translates characters in certain fonts to mathematical symbols
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Free Trial | ![]() ![]() |
Updated: March 18, 2021
2. Tab Delineated Format File

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Popularity
- Category Data Files
- Format Text
A TDL file stores data in a text format with blocks of information separated by tabs. It is similar to a .CSV file, but uses tabs to delineate data instead of commas. TDL files can be imported into most spreadsheet programs.
Tab delineated files may also use the .TSV extension.
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Bundled | ![]() ![]() ![]() |
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Commercial | ![]() ![]() |
Updated: October 14, 2017
3. ToDoList Tasklist File

- Developer AbstractSpoon
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Popularity
- Category Data Files
- Format N/A
Tasklist created by ToDoList, an application that allows users to organize their tasks and overall schedule; contains tasks, dates, duration, priority, alarm reminders, and other scheduling data.
ToDoList can visualize tasklists as a Task Tree, List View, Calendar, Gantt Chart, and Statistics. The application can also export tasklists to a variety of file formats, such as .HTML, .ICS, .GAN, and .MM.
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Free | ![]() |
Updated: January 21, 2015