Hi Guys

How can we look for a number in different spreadsheets? For example, I
have 10 spreadsheets in a workbook (all of them with data) and I want
to look for a number or a name while I do not know in which
spreadsheet this numer or name is, how can I look for it? I know we
cannot use Ctrl + F, as it only works in the active spreadsheet. Any
help???