I am trying to write a Dynamo script that will give me the total square footage of Areas grouped by certain parameters which I can then bring back into Revit to use in plumbing fixture calculations. I've managed to get the information written to an Excel file but when I try to import the values from Excel into Revit the square footage gets converted from a number to text. I keep seeing people commenting on how values imported from Excel can be set as numbers but nobody is providing instructions. Could someone please tell me how I can get numbers from my Excel spreadsheet to come into Revit as numbers?