.VMX

.VMX file extension

This is the basic program to work with .VMX extension

VMware Workstation

VMware Workstation VMware Configuration File

VMware Workstation Pro lets you run multiple operating systems as virtual machines (VMs) inside your Windows PC. It can be useful for IT professionals, developers, and businesses to build, test, or demo software applications in multiple platforms and devices... (more)

The program works with the following extensions: vmt, vmx, ova, ovf, vmc, xvm, vmac, vmsn, vmba, conf, vmhr, vmtm, vmxa, vmpl, vmsd, vmxf, sv2i, vmdk, nvram and vmlog

.VMX extension is also supported by the following programs:

VMware Workstation Player

VMware Workstation Player VMware virtual machine configuration

VMware Player Pro is a streamlined desktop virtualization program.
VMware Server

VMware Server VMware Configuration File

Begin enjoying the benefits of server virtualization for free.
VMware GSX Server

VMware GSX Server VMware Configuration File