Access VBA Export txt

Hello I have a MsAccess database with a table I need to export. We have a field "customer". For each value in that field, you have to create a txt file. If there are 15 different values then you have to create 15 txt files (it can be 3000 records for 15 different customer). The name of each file must be the value in field "customer"+date+hour (date and hour of generation). Export using the the specification created (name="ExportSample"). Code must be open. I may change it or copy in the final database. I don't need a form, I will run this with a macro. Access 2003 (XP). VBA code.