Mistranslated Picture

I asked a coworker to email me a picture and he used Gmail’s drag-and-drop feature to send it.  I received it to my gmail account (our work has a file size limit) but received the following instead:

Gmail asked me “do you want to open this in a separate page?” I clicked yes thinking I could then save the text as a file and rename it but got the following:

Stupid Soviet Bloc png files.