I have seen people use excel for effectively drawing and highlighting text
and data by coloring cells in a way that results in effect the cells looking
like arrows...I have also seen where this is done in "corners" of these
shadings looking "rounded". Now this isn't done - i don't think - using
lines/borders etc...but I can't figure out how it is done...I don't even
really know what it is called so I can't search for it. I'd attached a
picture to this post - I have one - if I could.

Don't know if this is enough to help me find what I'm looking for in an
example/template...let me know of if I can provide additional explaniation to
help me get there...thanks in advance!