No there are couple letters intermixed in the cell.
01/04+17.20/4.35m,-20,-23,S-15.50=4 .

Only one cell was the problem so I copied another and pasted, then corrected
the string. This worked, but still do not know why this was a problem with
one cell. Anyone else know?

"Kleev" wrote in message
...
It is hard to tell by how you phrase your question, but if you are talking
about a cell whose contents are entirely numbers, you cannot. I just
experimented, and it did let me bold part of a cell that had only numbers,
but as soon as I left that cell, the bold was removed.

"DrB" wrote:

but I can do it on some cells. What do I look for to change to be able to
do
this since I want a some numbers in a cell string to be bold?

Using Excel 2002.