Hello

I have quite a large workbook about 600Kb. I guess it's not as large as
some, and it isn't causing any problems (as far as I am aware). It has 6
worksheets, Each row is one day's record of various measurements, plus about
25 columns of calculations derived from those measurements, going back about
4 years. There are also some charts summarising all the data.

I am wondering if there is any advantage or disadvantage in using 'Copy /
Paste as values' on the rows of data covering the earlier years. This would
replace many calculation cells with fixed numbers. It shouldn't upset any
subsequent years calculations.

Is it worth doing, or are there hidden dangers?

Thank as always for your thoughts & ideas.

KK