my inbox is overflowing with a couple of thousand emails. same with my sent mail. i would like to save all these emails on an external / flash drive.
then i want to delete thousands of old messages from my inbox and sent mail.
when i tried to do this, i saved the whole profile folder.
but i don't know how to access the messages i've saved to the flash drive. i'm asked with what program to open the data.
if i indicate THUNDERBIRD, what opens is my current inbox (not what is saved on the external drive).
if i indicate something like NOTEPAD, i don't have any index, can't easily find anything, and not all the email appears.
I DON'T WANT TO RESTORE ALL THE MESSAGES TO MY (active) PROFILE EACH TIME I NEED TO LOOK AT SOME OLD (SAVED) MESSAGE ON THE FLASH DRIVE.