.OVA file extension

This is the basic program to work with .OVA extension

VMware Workstation

VMware Workstation Open Virtualization Format Distribution Package

Create real Linux and Windows VMs and other desktop, server, and tablet environments, complete with configurable virtual networking and network condition simulation, for use in code development, solution architecting, application testing, product demonstrations and more... (more)

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

.OVA extension is also supported by the following programs:

VMware Workstation Player

VMware Workstation Player Open Virtualization Format Distribution Package

VMware Player Pro is a streamlined desktop virtualization program.
Web Studio

Web Studio Web Studio Web Page

Web Studio is an easy to learn web design program.