If you drag and drop the CSV icon and drag it, a screen to open the file appears.
You can load a file previously stored on your computer or download public data open to citizens(ex) Chicago Data Portal.
When you load a file, a hexagon-shaped icon appears. The file name is displayed on the left hexagon, and the right hexagon is a toolbar for creating locations, charts, and pivots. If you click the center of the left hexagon, a green circle appears in the center, and you can move the icon by clicking and dragging it.
If you click the hexagon on the left, four icons appear. The first icon is a title modification, the second is a deletion, the third is a file download button, and the fourth is a reupload button.