>We are creating a Visual Foxpro based website where we are allowing the user to download their search results in various formats. One of those formats is (.xls). Does anyone know what is involved with using the name Excel? Or where I should look for that type of question?

I assume that you want to generate the Excel file on the backend. You can do this via OLE-Automation with code like this:

oExcel = createobject("excel.application")
oExcel.Application.Visible = .T.
oWorkbook = oExcel.Workbooks.Add()
oSheet = oWorkbook.Sheets.Add()
osheet.Cells(1,1).Value='123'
oWorkbook.Save()

Then, you will probably need to e-mail them the XLS file or allow them to download it via FTP.