Cannot export png properly

Adobe Fresco cannot export PNG files properly.

The files I exported to png all turn out to be a renamed file with many numbers, and the file type is also in numbers 
eg. File-2026-05-18To7:51:08.075Z

I have to manually change the names all over again, and type the file as .png to see it.
I am not sure if these files are capable of sending to print by manually changing the file type in this way.

I am using Fresco with my newly bought ipad air, the newest IOS, and also the most updates fresco version. 
Please does anyone knows if this can be resolved, or can I reach an adobe support hotline with human to help out? Thank you.