Files with ttl file extension can be mostly found as graphics file in Turtle format that is related to Logo programming language.
There is one other file type using
the TTL file extension!
.ttl - Tera Term macro
TTL file extension - Turtle Graphics data
What is ttl file? How to open ttl files?
File type specification:
The ttl file extension is associated with Turtle graphics files.
Turtle graphics is one of the main features of the Logo programming language an educational programming language, designed in 1967 by Daniel G. Bobrow, Wally Feurzeig, Seymour Papert and Cynthia Solomon.
This ttl file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.