In the User Management portion of the website, there are two ways to export user data into a spreadsheet. The first is to click "Export to Excel" in the top right corner of the user management page. The second is to click "Settings" and then "Import/Export Users."
The second method gets you all user data except for the following three fields from the first:
Created Date
Last Login
Last Order
If I want to send an email to all the people who have ordered in the last year, I have to consult spreadsheet #1 for order date and spreadsheet #2 for email permissions.
If I want to know who has signed up on our website in the last year from a certain marketing channel, I have to consult spreadsheet #1 for created date and spreadsheet #2 for the source.
Reconciling spreadsheets is not a quick process, especially when you have thousands of users. Adding the three data points listed above to the Export Users report would save a lot of time.