This will remove them from the current workbook. Uncheck the boxes for horizontal scroll bar, vertical scroll bar and sheet tabs.
On the screen that comes up go to the Advanced tab and scroll down to 'Display options for this workbook', where you will see some check boxes. To remove scroll bars and sheet tabs, go to the Office button, then Excel Options.
This video is a tutorial on how to remove scroll bars, sheet tabs and objects in Excel.
