Windows Minidump File
When your computer crashes a special file is created which logs what has happened when the computer crashed. These files can then be debugged to see what has caused the computer to crash.
The information stored in these files is dumped from the computers memory and is then often used by software companies to see what has caused the problem.
These files can usually be opened by Visual Studio and the program WinDBG.
» Windows Debugger
How to open .mdmp files?
Software to open .mdmp files
What are .mdmp files