Micro sleep is when you .

Microsleep refers to periods of sleep that last from a few to several seconds.

Calculate the number of columns/rows ( A )

Explanation:

In creating a table in excel you have to click on the table from the menu bar and enter the number of rows and columns which you must first calculate to make sure you create an appropriate table size to contain the number of columns and rows you want fixed inside your table.

Defining the column headers is the next thing to do after inputting the appropriate number of rows and columns for the table.

A table is one the best ways to present data for better understanding.