Microsoft Excel is an essential tool for office workers. It is very powerful on managing and calculating data. For example, if there are some data about sales information, we can use Excel to calculate average sales and total sales within one quarter. Also, it is convenient for printing if the data in Excel is well formatted.

Actually, if we want to display and operate data, we must import data to Excelfirstly. Where can we get the data? Sometimes, we can type data in Excel, but most of ...