I have to import various price list from diferents places (xls) wich
have diferent description referencing to the same product, for example

suplier A list
hd 40 gb U$S 50

suplier B list
Hard Disk 40gb U$S 51

and so on .....

Database example
Products : {Id_prod, description}
Customer : {id_sup, description, location }
ProdCust: { id_prod, id_sup , price, date}

I must build a proces that could permit me to update the price list
automatically.
I dont know which way take, someone with more experience than me,
could anybody Help me .... please ...