Can you give me the open layer file of the design?

No. One of the universal rules of graphic design is that the open layer design file is not provided to the customer. This is to maintain the responsibility for possible misuse of the design for the designer. After the completion of each design and receiving approval from the customer, the closed layer file with the original quality is provided to the customer and full authority is given to the customer to use in any dimensions. You do not need to have an open layer file to print in any size.

"logo design" and "template design" orders are exceptions to this rule and their open layer file is provided.