Using the upload center
You can see your current data project from the Upload center button on the left application sidebar. Click on the button to open a popover containing the list of available data projects.
Click on the Create new project button to create a new data project.
Select a data project from the list to make it current. The view will refresh to load the data in the selected data project. You can deselect the current data project by clicking the Deselect project button.
You can add data to a data project by clicking the New upload button. Name the upload and follow the instructions about Importing data from a spreadsheet. The new data upload will be listed as a row under the current data project in the upload center.
You can click the red cross icons beside data projects and uploads to delete them.