If anyone please kindly advise me how to lock or protect some area of cells in worksheet.

As I have set formula in some cells and I don't want user to edit or delete in that cell.

But user still can fill in data in other cells , which they can edit or delete by themselves.

I have attached excel file as link below.

120224_How to Lock cell_ENG.xlsx

It would be pleasured if anyone can instruct me how to do it ? ^___^

THANKS A LOT in Advance

LEE+