Make a detailed Grantt chart (excel)for new website including the roles and responsibilities of the participants the project

Based on the below:

We have 4 store managers, 4 store assistant managers, several

store attendants, , several home improvement designers, 1 HR officer, 1 Accountant, 1 procurement

manager, 3 account executives in charge of maintaining relationship with suppliers, 1

executive assistant and 1 administrator. In addition, the owner and his son are involved

in the management of the organization. There is no IT department looking after the

information and IT infrastructure of the company.