I have been working on a large sheet and copying/creating new column of
formulas,,and now it take forever for the copying to be completed, where as
before this same task was faster. In the lower left corner of excel it say
'copying comments' while it working to copy the cells. Not sure why it says
that. In the past when I had speed copying I don't think it did that.

How can I speed up copying of many column like it did in the past?

Thank you.
--
John 3:16-19