what causes excel to take so long to load a spreadsheet

[junior]

when i open a spreadsheet it takes far to long to load it.
once the hard drive starts to run it loads quick seems that it doesnt know
where the spreadsheet is.

 

[Dodo]

when i open a spreadsheet it takes far to long to load it.
once the hard drive starts to run it loads quick seems that it doesnt
know where the spreadsheet is.

How long and what's the size?

Let you go your HDD to sleep?