I had a similar problem - How do you quickly get rid of all race data? My list of boats seems to keep on growing every new race - even after I delete the files from the text folder and restart.

The easiest way is to open Expedion.mdb in MS Access and then delete all boats from the database table.

I select all the boats that I want to delete (by number, not name) and when the dialog box for the first boat appears I lean on the Enter key and do not release it and the machine goes flying through every selected boat in a matter of seconds. Hope this helps.

You can also rename the database file. Exp will make a new copy and call it Expedition.mdb by default.

​Select the database on Exp's system settings.