Micro Planner X-Pert is currently designed for the Windows OS. At present it's native use is limited to the 32bit Windows OS.
64bit Windows and Apple OSX can both run X-Pert however.
Emulators that can host any 32bit version of Windows can be run on these platforms to allow X-Pert to run normally. This page outlines some information to assist you to do this.
Important Installation notes for X-Pert Version 3.5.1
Below are some extras that you may wish to add to further enhance your X-Pert experience, the value inside the brackets is the added cost
Stuff about 64-bit support
Installation Support Notes
Below you will find documentation to assist your installation of Micro Planner X-Pert V3.5.1Windows 7 64-bit Installation Notes - VMware Player 4 (28192)