solve in excel please

a) Determine the most appropriate assignments of jobs to machines to minimize total production time. What is the total assignment time? b) Formulate the problem as a linear programming problem. c) Apply the Golosa heuristic by rows to obtain the assignment. What is the total assignment time? Comment on the result in comparison to that of ifern aj d) After having made the assignment obtained in a) and after 4 hours, the process is reviewed, determining that job four (T4) is 1 hour late and that the work three. (T3) is delayed 4 hours due to failures in the assigned machines. At this moment in time, two additional jobs have arrived on five (T5) and six (16) that must be assigned to a new schedule of activities. The details of the new jobs are as follows