MKV file that won't play on anything, not even VLC/DIVX, help?

There is one MKV file that I have. I was downloading earlier, and I check to see if it worked. It did. However the file stopped downloading because I accidentally closed my browser. I have downloaded it again, however it wont play on anything. I opened in VLC and it simply flashed, with the name on the top, and then went blank, as if I hadn't opened a file at all. I tried to open it with Divx player, and that didnt even acknowledge me opening it, I pressed play, and it flashed green. I have scanned it with avast and malwarebytes, however it doesnt appear to be malware. So how can I play it? Windows Media Player doesnt work either.