I need to create a simple form for ordering items from a supplier. The form should contain a table w/ dimensions 4colums x 10 rows.
The first row contains the column names Item, Part Number, Quantity, Unit Price.

1./ How to create such a table so that user can write into table's individual cells? For example, user can order the following two items:

pencil KH656 15 0.88EUR
eraser KE100 20 0.45EUR

2./ Is it possible to create a "smart" table that will work as a spreadsheet table, for example that will calculate values in the cell Total Price?