What does it show when you choose File > Export. Make a screen capture. You can't email it. Come back to the forum in your browser. Use the "camera" icon in the editing window to attach the screen capture.
I have the same problem. I used to be able to select file format when exporting, but now the option is completely missing. As a result, I can't save files from indesign to other than .pdf and .idnn. I spent hours searching for a solution online, but couldn't find anything helpful. If anyone knows how to solve this issue, please reply. I'd really appreciate it!
What it suppose to look like:
Thank you guys!