How do you upload unrecognizable video formats to website.

I have just put WP on a site for a World Of Tanks game clan. They want to be able to post game replays (.wotreplay extension) to the website for members to review them after Tank Company and Clan Skirmish Battles.

Is there a way I can do this? Media tab in the dashboard won’t upload them because it does not recognize the format. Would it be possible to add this format to allow us to do this? Or is there another way I don’t know about?

This was one of the main reasons for setting up the site as our clan is aiming at Clan Wars.

Playback is no problem as clicking on that format fires up WOT to replay it, and we are not too concerned about non players being able to view them.

Just want to get them on the page.