You probably mean how to protect ms excel files from being viewed or changed.
You can do this with the help of the password:
From the upper toolbar menu pick Tools - Options
You will get a window
Pick "Security" tab.
And then just use whichever option you need.
MS-Excel is a powerful worksheet & you calculate , syncronize many hard calculation, so MS-Excel is called Excel.
MS Excel is under Microsoft Office
ms excel 2010
16,777,216 in versions up to MS Excel 2003. From MS Excel 2007 onwards is 17,179,869,184.
Program - MS Office - MS Excel
ms excel is used to create spreadsheets.
There is no ruler bar in MS Excel. That is an MS Word function.
The cursor is called a cursor in MS Excel.
MS Excel is a spreadsheet; MS Paint is a basic graphics editing program.
MS Excel does not have a slide show, but MS PowerPoint does.
There is no PowerPoint control center in Excel. MS PowerPoint is a presentation application. MS Excel is a spreadsheet.
You can use most versions of MS Word and MS Excel with Windows Vista. The versions mostly associated with Vista are MS Word 2007 and MS Excel 2007.