Creating tables within Cells in Excel

I create checklists that correspond to different times when those steps are to be completed.  Some of these checklist steps have polls with a fairly decent number of people to ensure communication connectivity.  Therefore there is an introduction to the poll, then the poll followed by a conclusion to the poll all within the same step.  In order for the us to use the formula function for the times and step numbers, we need to be able to put all of the step info into a single cell.  So then in order to line up the polls and not make the cell gigantic, we were looking to put the polls into tables or columns within the cell.  But I am unable to figure out how to do this in Excel.  Please Help.