Usually, yes.
yes
Office ClipBoard
Yes.
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clipboard
There is no copy area in Excel, but Windows has a clipboard where you can copy stuff.
Yes it does.
When you copy or cut something it is stored into memory. This is known as the Clipboard. From there it can be pasted to other locations. The clipboard is capable of holding multiple items for pasting.
You can use the clipboard in Excel. It is a facility as opposed to a traditional function, like the SUM function or AVERAGE or MAX and other functions that are built in to Excel.
Yes, you can set ranges using validation options in Excel.
Use data validation and require a specific entry in the cell. See related links for various options for data validation in Excel.
Validation.