A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Not with any certainty, sorry. I could guess that it's somehow possible that the default printer setup on the two originating computers is different. The setup on-screen and for printout is often based in part on the default printer.
As an example: I often have to try to closely emulate the look of a PDF or Word document in Excel. The test for accuracy is to simply align a printout of the original document and a printout from Excel and hold it up to a light to see if things align closely enough. But I have to do it on just one computer, and use the printer that the final product will be printed on: if I do all the setup on another system with a different default printer and get everything 'perfect', it will NOT be perfect when printed on the final production system with the production printer. And this means changing row heights/column widths on screen to get the proper output for the final work.