A family of Microsoft relational database management systems designed for ease of use.
You aren't giving us a lot of info to go on here. I'm guessing you have a table of your part numbers. And you periodically get a spreadsheet from your suppliers with their numbers. You can link to or import the workbook(s) Youll have queries that link the three tables together. Other queries that will show new parts on either side so you can create the cross reference records,