A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
On Excel at the bottom where the scroll bar shows:
Note Unless You leave enough margin between Bottom edge of Excel Sheet and The Dock, when you mouse over the arrows a Pop up tool tip will hide the arrows so you can't touch them.
On the other hand in Excel 2011 there is small space Bar between Tabs and the slide bar as shown here:
Follow Directions in the annotation in the screenshot. Personally I prefer the way it's done in 2011.
_________
Disclaimer:
The questions, discussions, opinions, replies & answers I create, are solely mine and mine alone, and do not reflect upon my position as a Community Moderator.