Mamun academy is a prominent YouTube channel that has a lot of tutorials on Microsoft Excel functions. Mr. Al Mamun is a professional of MS Excel.
MS Excel is a powerful tool that enables us to do calculations effectively. Complicated tasks like creating result sheet, employee payroll etc. can be done easily with MS Excel. It can work with a vast amount of data within a second.
Mamun Academy: https://goo.gl/auxBvk