a partial response is to use TEXT(A1,"#,###") with quote marks
making part of it be bold would require code.

"dj479794" wrote:

Excel 2003

If I havea text string formula and I insert a number. How do I get the
number to be formated with the comma
for "thousands"
[A1]
= "I want to purchase " &C2& " candy bars from the grocery store"

= "I want to purchase " 10,000 " candy bars from the grocery store"

I tried TEXT(A1,#,###) and doesnt work
Also, I want to put only a couple of words in bold font?. For example the
word "purchase".