I have designed a spreadsheet which works on a number of assumptions. It is far too detailed and unwieldy to be used in a presentation, so I want to link the spreadsheet to a Powerpoint presentation.

I know how to get Powerpoint to show information from Excel, but I want to be able to make changes to fields in Powerpoint and have them feeding the Excel spreadsheet and returning the results back to Powerpoint.

any ideas how I can achieve this?

Thanks

Simon