Why doesn't the comma from the date field in my Excel variable data file upload into my template?

In a template that uses a variable file upload in which one of the fields that comes from the variable data file that is a date that you would like to appear in a Month day, year format, if you format the field as a date in excel, the comma will not import.  eDoc Builder will not read the formatting from Excel.  It will only read the value.  You have two options to remedy this:

1)  Format the fields as text in Excel.
Use a VB script to format the date.  The script would look like this:

format_date(DateField, "m e, y")

Obviously you would replace "DateField" with the name of the field that contains the date from the file upload.