A. My bet is that you haven’t loaded Analysis ToolPak , a collection of powerful functions that comes bundled with Excel but for some reason isn’t automatically loaded when you set up Excel. To load it click on Tools , Templates and Add-Ins . Then place a check next to Analysis ToolPak and you’re in business (see screenshot below).
If you don’t find it under Add-Ins , you have to reload Excel from your original Microsoft Office disk.
When using the ROUND function, you can round to the nearest half-dollar with either of these formulas:
=ROUND(A1/0.5,0)*0.5 or =ROUND(A1*2,0)/2.
The MROUND function uses a shorter formula: