Please show your step in Excel, also please using solver in Excel to solve it! Thx!

14. Indi Inc. is thinking of opening 4 warehouses in four metropolitan areas in India: Delhi, Mumbai, Kolkata, and Chennai. There is a fixed cost associated with oper- ating each warehouse for a week. It is 30,000 rupees for Delhi, 40,000 rupees for Mumbai, 50,000 rupees for Kolkata, and 20,000 rupees for Chennai. Each ware- house can ship a maximum 10,000 units per week. Indi Inc. has identified four regions in India with different demand requirements for each. The requirements for North, South, West, and East India are 5,000, 6,000, 4,000, and 5,000, respec- tively. The shipping cost per unit is shown below: NORTH SOUTH WEST EAST DELHI 180 350 250 280 MUMBAI 320 150 200 275 KOLKATA 300 180 250 100 CHENNAI 400 80 290 300 Also, the following requirements must be met: a. If Delhi is opened, Chennai must be opened. b. If Kolkata and Delhi are opened, Mumbai must not be opened. c. Either Delhi or Mumbai must be opened, but not both. Formulate an integer linear program to supply demand at the lowest total cost