Locking all Formulas on a spreadsheet

Hi All,

I am currently working on a new spreadsheet for my company in which the workbook has various TABS for each department in which data is entered and formulas are in place to calculate totals on a daily, weekly and monthly basis.

On top of this I have other TABS showing the STATS for all departments for weekly monthly and annual figures.

All the TABS in the workbook contain at least 1 if not numerous formulas, and in fact the Stats tabs are only for pulling data from the other sheets.

I understand you can unlock cell ranges for data entry and lock other cells but I can only see this in "ranges".

What I would like to do is protect every formula on the workbook as they are so extensive it would take me as much time to protect each/give access to certain ranges as it did to create the workbook in the first place!

Can anyone tell me if this is possible, or am I best to lock the whole workbook and only allow permissions to certain people within each department?

Thanks all!!

~Sat~