.tmb is Timbuktu Pro Connection Document
Key Features: .TMB File Extension
What is an .TMB file?
Remote access control file used by Timbuktu, a program that allows multiple computer systems to be controlled remotely; stores the connection settings for a remote connection, including the computer name, remote IP address, and security settings.
Connection documents are created as desktop shortcuts. They can be double-clicked to connect to a remote computer. They may also be right-clicked and opened to edit the connection properties.