Files with tlcodes file suffix are related to the GamePlan software.
TLCODES file extension - GamePlan data
What is tlcodes file? How to open tlcodes files?
File type specification:
The tlcodes file extension is associated with the GamePlan, a software for Microsoft Windows operating system.
The tlcodes file stores some kind of data used by GamePlan program.
GamePlan seems to be obsolete product.
This tlcodes 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.