.TLB File Extension
File Type 1VAX Text Library
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
What is a TLB file?
Contains a text-based library of information used by a VAX / VMS system
File Type 2OLE Type Library
This file is saved in a binary format, which requires a specific program to read its contents.
.TLB File Association 2
Contains user interface data for programs that support Microsoft Object Linking and Embedding (OLE); generated by Visual Basic when an OLE or ActiveX server is created and the "Remote Server Support Files" option is selected.
NOTE: The file stdole3.tlb my contain a Trojan virus, so it should not be opened.