When you use excel suppose you need to look a members detail his historical details . The time spent looking for record will be more compared to that in a software
Chances of loosing the data is high
You can store redundant duplicate data and there were no message stating there is duplicate record.
You wont know which record was entered by whom and when.
Multiple users cant acess the same data at same time.
Chances of corrupting or loosing data is high when you use excel.
Cannot handle large data.
