How can i take off the .html from my urls?

just submittes some websites but they show . html on the website

http://ift.tt/20aOkJN

Epic visual tool

Epson 5030UB 2D/3D 1080p 3LCD Projector Submitted October 28, 2015 at 08:10PM by socialcluster http://ift.tt/1N8VPvy