Outlook Express is an email client. It came as part of Microsoft XP and previous MS Op systems. An email client is a program that can, collect from and send email to, the email web servers and stores the emails on your harddrive and is able to open the emails for you to read.
An Android tablet is not able to open the microsoft windows program Outlook Express.
Can you explain in more detail what it is you want to achieve? are you wanting to delete some of the emails on your laptop? Are you still using the laptop and collecting emails with Outlook Express? The only way the emails will be "building up in outlook" is if you are collecting them, and if that is the case then delete them in Outlook Express.