XTT file extension - X TimeTable data
What is xtt file? How to open xtt files?
File type specification:
The xtt file extension is associated with the X TimeTable, a software used to create time tables.
The xtt file contains some kind of data used by X TimeTable.
Seems to be obsolete product.
This xtt 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.