How to move a VM from hyper-v running on 2012 to VMware ESxi server 5.0 ?

conversion can be achieved by using VMware converter

you can export the machine from your hyper-v after that you will convert it by VMware Vcenter converter stand alone the last step you can open it in your Vspher environment   ---- and if you need convert from Vspher to Hyper-v you can use Microsoft Virtual Machine Converter this kit available in Microsoft web site you can download it.

First Convert vm for Esxi then export vm from Hyper-V and then import the VM into Esxi Server Thanks there is not change for importing or exporting into new version same like previous and dubug quickly then previous.

Using VMware Vcenter Converter

VMware converter is best to perform this task.

here is url steps:

https://www.youtube.com/watch?v=wN47t9Vc37w