You can't - cells can contain only values or formulae. Images/other
Shape objects always exist on the drawing layer "above" the cell grid.

You can position and size the image, and set its properties to Move and
Size with cells.

In article , kang
wrote:

how can I insert image to the cell, preferably from the clipboard?
when I paste from the image in the windows clipboard, the image is
layered. I mean the image is not in the right cell.
how can I insert the image into the CELL?