You don't need to go online. Just go to Tools, Add-ins, and check the box
for Analysis ToolPak. CUMPRINC will be added to your available functions;
it will be in the Financial group.

"jamo" wrote in message
...
Operating system is XP. Office 2000 came installed. I am trying to
calculate
CUMPRINC, but can not do so without Add In form Analysis Tool Pak, which
is
not installed. Don't have disc with Tool Pak on it. Hoew do I find it
online,
download and install it?