close file -> open and save

[Miri]

hi,
i have very large file(~13000) i did some conditional formats deletion via
macro. i also saved the file via macro.
i noticed that the file size was reduced(~9500). but if i open the reduced
file and close with save it size becomes even smaller (~8000). i believe
there is a way to implement the last reduction via code(and not open&close),
but i do not know how...please advice.
thanks,

 

[Tom Ogilvy]

Maybe this will give some insights:

http://www.contextures.com/xlfaqApp.html#Unused