Opened up one of those files with a text editor an it seams to be generated by the email app (not sure its gmail or the email one) but they do tend to make going through your internal storage a pain when you scroll through 30 of them >.<
The file is generated by the stock E-mail app and if you remove the plain email and exchange app and download a different one it will rectify the problem
Opened up one of those files with a text editor an it seams to be generated by the email app (not sure its gmail or the email one) but they do tend to make going through your internal storage a pain when you scroll through 30 of them >.<