Any comments regarding how a 3 or 4 line macro would substantially
contribute to enlarging a spreadsheet workbook?

Through the help of this NG and sources, I was able to use a macro in a
spreadsheet that would hide columns of data that were blank.
This sheet was submitted to be incorporated in a workbook with approximately
5 other tabs or worksheets.
The person responsible for doing this omitted this macro stating the reason
was they were trying to keep the footprint or size of the workbook small.
Several people I demonstrated the macro to thought it would help them
immensely and they are soon to find out it is not there.

I honestly don't know enuf about modules, placement, and macro size to
understand if this reasoning is sound or not. The lines in the macro
amounted to less than 3 or 4, much less than this post alone. It could be
perhaps it conflicted with another worksheet, but I am only guessing. My
thoughts, I hope unwarranted, are this person simply didn't want to take the
time to incorporate it completely.
Comments?