File_1
Item              Availability       Broken
Laptop_Monitor        10                2
Laptop_Case           20                0
Laptop_Bag            25                1 
Office_Chair          20                1 
Mouse                 10                0
Keyboard              10                0 

File_2
Item               Newly_order      Ref_Name  
Laptop_Monitor        15          HMX-190B-F  
Laptop_Bag            20          BMT-1920-U
Office_Chair          10          ORD-455_T