ffprobe output video: png?

ffprobe is telling me that my video file is a png. [png_pipe @ 0x7f9ece003c00] Stream #0: not enough frames to esti...

Text file with 0D 0D 0A line breaks?

A customer is sending me a .csv file where the line breaks are made up of the sequence 0xD 0xD 0xA. As far as I know...

What is the (file) format of iOS/iPhone apps??

I know that Android apps are packaged as *.apk files, but I have no idea in which way an iOS/iPhone app is stored? ...