What qre the file extensions in QTP?

The following the file extentiosn of different files in QTP

User Defined Function Libary File Extension --> .VBS , .qfl , .txt

QTP Script File Extension --> .mts

Shared Object Repository File Extension --> .tsr

Local Object Repository File Extention --> .bdb

Test Batch Runner File Extension --> .mtb

QTP Recovery Scenarion File Extension --> .qrs