Enter the name of the data source
Specify the URL to the page having an HTML table.
Hit ENTER or click the search button when the URL has been typed in to select a table from the page.
If this option is checked the file including the first line will be loaded and instead of utilizing the first row as column headers all columns will be named like "Column1, Column2 etc." and at the same time load the first line of data as "data".