A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
I'm not sure I understand what you are trying to do...
If you copy an entire sheet it cannot be pasted into a smaller range. IOW, you cannot paste A1:XFD1048576 (17,179,869,184 cells) starting anywhere other than in A1 because the right & bottom portions of the copied material would extend off the sheet. No additional rows or columns can be created.
I think what you may actually need to do is select the specific range you want to copy rather than selecting the entire sheet. The simplest way to select a range is to use the Name Box at the left end of the Formula Bar. Click in that, type the reference of the range you want to select [e.g., A1:K1000], then press return & copy the range. You then will be able to paste it anywhere on the destination sheet as long as the starting cell doesn't cause the copied content to exten off the sheet.