Hydrogen, oxygen and nitrogen are counted as some most important elements and found abundantly. About 75% of this universe is composed of hydrogen and helps different other matters to sustain. Large starts and planets, electrons and protons are also composed of hydrogen.
A sheet tab appears at the bottom of your worksheet. It has the name of the worksheet on it, which can be changed and you can also change its colour. This can be done by right clicking on it and picking the option from the shortcut menu that appears. By clicking a sheet tab, you can make that sheet the active sheet so that you can work on it.
Row and Column Basics. MS Excel is in tabular format consisting of rows and columns. Row runs horizontally while Column runs vertically. Each row is identified by row number, which runs vertically at the left side of the sheet. Each column is identified by column header, which runs horizontally at the top of the sheet.