Transfer Data From Visual Basic To Excel?

im trying to design a program where a user inserts text into some text boxes, and selects an item from a dropdown box, and clicks add, i want it so when they click add, it puts the data from the text boxes into an excel worksheet, so say, textbox 1 is product, put product in A1, the second would be cost so put the cost in B1, but the product type in C1(this is the drop down box) and then clear the visual basic form, so the user can enter a second set, and then when they click add, it adds the information into A2, etc, etc.