Re: put mdb file list in dropdownlist from a folder

I'm not writing your application for you - unless you want to share your fee. I'll give you some pointers though. You can use Directory.GetFiles to get a list of files in a folder. Mdb files don't have worksheets. They are Access databases, so they contain tables. You can use System.Data.OleDb to connect to  an mdb database and query is with SQL.

http://www.connectionstrings.com/microsoft-jet-ole-db-4-0/