What is outlook explorer? Do you mean outlook express?
I know that Microsoft Outlook uses pst files. They are essentially like database files which store emails in a format understandable to outlook. Not quite sure whether its the same for outlook express though.
I'm not a big fan of outlook express, but I'm sure there should be an option there to import/export data. You can then export the emails in a format which can be read by the other email client. Copy the exported data onto your new machine and import it using your email client.
I know that Microsoft Outlook uses pst files. They are essentially like database files which store emails in a format understandable to outlook. Not quite sure whether its the same for outlook express though.
I'm not a big fan of outlook express, but I'm sure there should be an option there to import/export data. You can then export the emails in a format which can be read by the other email client. Copy the exported data onto your new machine and import it using your email client.