Hi Pierre ,
Sorry , but that is not the real reason for the reduction in the file size.
The basic problem with the original file was that the first 8 columns of data had data till row 4027 , while the last column , which was through a formula , had the formula copied till row 47000 or so.
The reason I shifted to a table was because then I could delete all the unnecessary rows , since the table would automatically copy the formula to newly added rows. Thus , there would be no necessity to copy the formula down to row 47000.
The benefits are that :
1. The file size has come down.
2. The formulae , both in the table and in the summary sheet , have become dynamic , since the ranges used will automatically resize themselves
3. The recalculation speed has increased.
Narayan