Files with t99 file extension are old tax return files for year 1999 prepared in H&R Block software.
T99 file extension - Kiplinger tax cut
What is t99 file? How to open t99 files?
File type specification:
The t99 file extension is reported to have been used by the old Kiplinger accounting software from H&R Block company for tax return files for year 1999.
Obsolete file format.
This t99 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.