In this tab, clicking on ‘Load’ will load the data into the app, you can update the names of the columns but for that you have to mention all the column names in proper order, you can use the datatable shown beside to take help. After giving new colnames clicking on ‘Update’ will update the data. At any point clicking on the ‘Reset’ will reset the data to its primery state. You can also convert any column to numeric, factor or charecter. If you are loading your own data you need to select the ‘upload data’ selection from the ‘Dataset’ dropdown. Verious tabs here show verious stats of the data.