data from PowerPoint into excel

Hi all,
I have a PowerPoint induction presentation when people have completed the presentation I want the contents of a userform to go to excel, with a new row for each person. I have found some code snippets on the web, however none of them seemed to have worked.
I can open the excel, however sometimes cannot get the information to go across. I have commented out a lot of code and don't seem to be able to get it to work even when I put cell.value ="3". Does anyone have some code they know works please?