hey.. you might want to try some VBA.. Datapig has good examples for you http://datapigtechnologies.com/blog/index.php/zoom-into-spreadsheet-on-double-click/
Thanks for your reply, I try this one, but whole excel sheet was enlarging instead of a particular cell. My requirement is when i pasted a picture in particular cell if i double click, it should enlarge picture only.... Thanks
I agree... you cna borrow the ideas from there and findout how you can zoom the picture...
Another simple option is.. set the image properties to move and size with cells (right click, properties). Now write VBA code to increase row-height, column widht of the double clicked cell.