Hi,
I am trying to analyze data from different dates. The date information is stored in the excel file names. If I import the excel files together, the date information is lost. So I have to add a date column to each excel file and then combine them. This can be very tedious if I am working with more than 10 days of data. Is there a way to add a marker to the data when you import them together?
Basically, how do we differentiate data source when you import multiple files together?