To open a saved message click the button on the toolbar (opened briefcase)
or choose menu item "File|Open message" and select the file to work. By default
you will see files with extension *.amsm. AMS uses this file type to
save messages.
Another way to open the message is to choose the AMSM-file in Windows Explorer.
In this case AMS will automatically load this file and you will be able to
edit it and send the mail.
In Windows Explorer AMS files will have the following icon:

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