Add spaces: IhavenoOculusRifthardwareandcannotsayhowwellitworksinconjunctionwithit.

Answer: I have no Oculus Rift hardware and cannot say how well it works in conjunction with it.
BeforeyoucanopenaQD4file,you'llneedtofigureoutwhatkindoffiletheQD4fileextensionrefersto.

Before you can open a QD4 file, you'll need to figure out what kind of file the QD4 file extension refers to.
[Q]: [Casematerial:18kgoldwithdiamonds,bezelandlugssetwith204diamondstotal1.28karats]
[A]: [Case material:18k gold with diamonds , bezel and lugs set with 204 diamonds total 1.28 karats]
Problem: Add spaces: Thisisa20mmOerlikonanti-aircraftmachine-gun,whichfires450roundsperminutewithamuzzle-velocityof820m/sec.andarangeof2km.

Spaces added: This is a 20 mm Oerlikon anti-aircraft machine-gun, which fires 450 rounds per minute with a muzzle-velocity of 820 m/sec. and a range of 2 km.
This text is missing some spaces, please add them: Firstprototypeshavebeencompletedandinuse.
First prototypes have been completed and in use.
[Q]: [EUmakeseverydaylifeeasierforEuropeancitizensandbusinesses]
[A]:
[EU makes everyday life easier for European citizens and businesses]