I checked it out tried your line as a suggestions and it didn't work
here is the actual message
"gedit was not able to automatically detect the character coding, please check that you are not trying to open a binary file and try again. Selecting a character coding in the open file or open location dialog.
my gedit line reads gedit '%s' which gives the error. I try to open the file via file open can see lots of characters but the actuial attachment message is garbled.
How do I fix gedit which is the program that opens these characters I guess.
I verified the program is installed.