Microsoft excel is a type of spreadsheet program that is made by Microsoft office. Most people use excel for gathering and organizing data in a spreadsheet. You can put titles into the first row. Then put the information or data into the column below the title. You can sort the information by alphabetical or numerical information. When you want to type information or titles into a cell, then you would click on that cell.
The cell is considered active because you can manipulate the information in that one cell. You will know that this cell is active because it will be highlighted. The other cells will remain white or the color of the background. Only when you click on the cell and your cursor is in that cell will it be highlighted.