I'm attempting to import/load an Archive.sbd file folder containing my old Thunderbird emails circa 2002-06. I attach an image showing the files and their sizes. I'm using the import tool and selecting import from a thunderbird profile and selecting all categories of Data to be imported. I get an import failed unexpectedly message. I attach an image showing this response. If I select only mail messages to import, the process completes with a file folder called Thunderbird Import which is empty. Not sure what the problem may be. Possibly exceeding file size? or Am I selecting the right category under import. I have no Zip files hence didn't use import from a file. I'm really unsure as to how to even look at what's on the Archive files but certain the larger files contain email messages. Thanks, Gary Mumaw