Someone please give me parameters for Add-Ins, some do's and dont's.
What will Excel tolerate in the way of Add-Ins and clip art, etc.?

Let the newbie who stuck her hand in the cookie jar speak first--
that's me. And it hit all at once, the Smart Draw trial download,
the .png (portable network graphics) clip art with transparent
backgrounds soooo good on the sheets, sheet after sheet and a young
newphew whose ideology militated against a straightforward install of
Windows. It gets you right where it hurts, too.

Presently I'm shut down on my largest sheets--but not my smaller
ones. System Summary tells me I have an Office Event/Application
Fault which an office repair did not fix.

And Dawn, please tell me how to start Excel with /a, If only I were as
proficient in key commands as I am fearless in clip art.