QuickTime convert .avi to .mov with OS X Mavericks
Hello! I used QuickTime for watch any videos on OS X Mountain Lion, but now, I'm passed to OS X Mavericks and QuickTime, when I open an .avi file, convert this in a .mov file. I'm sorry for my English, I'm French and I don't know speak English very well, but what can I do for QuickTime opens on .avi and doesn't convert to .mov?
MacBook Pro (13-inch Early 2011), OS X Mavericks (10.9), QuickTime Player X