Thank you,
But, just to be clear, I built one worksheet (wtih three graphs) and copied
it 50 times. I started getting the message around sheet 30. Are you saying I
should copy all the worksheets to a new workbook? I have already renamed the
workbook.

"Vacation's Over" wrote:

Excel has a limit of 4,000 unique fonts per file

unfortunately it also can "remember" some of the charts you create then
delete.
making it easier to hit the 4,000 limit
you may need to copy information to a new file

"JAKOMO" wrote:

when copying worksheets why do I get 'no more fonts can be added' message