Formula that returns field name


Trying out AirTable to see if it suits what we need.
We have about 100 records and each has about 10 stages of completion so at the moment we use a simple spreadsheet to fill in the dates of completion. Looking to do something here but as the stages span a number of pages what I currently have in Excel is it finds the latest date in the row and then returns the heading for that row ie stage 1 passed. As far as I can see on AirTable it would need to pick up the name of the field in which the latest date was found. Is there a way to reference this? Thanks in advance.