Add any transformed fields (e.g., new columns that you create) to the end of the data set so that you can easily find them and differentiate the new data you have created, from the original data. Highlight these new fields in a color to further differentiate them from the original data. Consider the following in approaches you could take: You can work to update each data file to ensure that they have a commonly defined set of variables and leave them separate. You could combine the two files (once you have created the commonly defined set of variables) and include an indicator variable to differentiate between the data that was originally contained in each file. You could consider additional separation or combinations of data utilizing functions such as LEFT or CONCATENATE. Overall, since data represents both years, be sure to differentiate accordingly. When you finish loading the data, upload a copy of your Excel file to be graded