Rendered image files are unreadable files without specification I'm super confused!
I'm exporting a scene in Blender (Cycles render) as PNG's (500 frames).
But the files that are produces are not PNG's, they are just files without specification. I also tried JPG's but it gives me the same unreadable files.
I usually use Blender render without any problems.

Does anybody know what i am doing wrong?
I would really love to get an answer.

thanx everybody :)

dirk
How about checking the "File Extension" option?