The first thing to know is what files are used to create a virtual machine:

★ .XML files

These files contain the virtual machine configuration details. There is one of these for each virtual machine and each snapshot of a virtual machine. They are always named with the GUID used to internally identify the virtual machine or snapshot in question.

★ .BIN files

This file contains the memory of a virtual machine or snapshot that is in a saved state.

★ .VSV files

This file contains the saved state from the devices associated with the virtual machine.

★ .VHD files

These are the virtual hard disk files for the virtual machine

★ .AVHD files

These are the differencing disk files used for virtual machine snapshots