How to customize excel report output for Input Table?

How can I get this report to record entries by Team # so that only one Team is listed per row in the Excel report vs. all Team #'s list in one row?

If this can be done, can the Excel report be updated retroactively to show one team per row?

Unfortunately, it is not possible to customize excel report output. There is no option to split 1 submission into several rows. Usually, 1 field will fill a cell, but in case of Input Table, which is used for teams on your form), every cell of table will fill 1 cell of excel report. 

To receive more user friendly excel output, I can suggest Configurable List widget for teams field. It will show data in rows within a single cell:

But, please note that deleting a field from a form will also delete submitted data, so in case you decide to replace a field on a live form, we can advise to hide a field add new one foe further submissions. 

We will gladly assist if you need any further help.