If you don’t have any of your own data to work with, you can find some example datasets here:
There are multiple ways to import data in H2O flow:
Click the Assist Me! button in the Help sidebar, then click the importFiles link. Enter the file path in the auto-completing Search entry field and press Enter. Select the file from the search results and select it by clicking the Add All link.
You can also drag and drop the file onto the Search field in the cell.

In a blank cell, select the CS format, then enter importFiles ["path/filename.format"] (where path/filename.format represents the complete file path to the file, including the full file name. The file path can be a local file path or a website address.
After selecting the file to import, the file path displays in the “Search Results” section. To import a single file, click the plus sign next to the file. To import all files in the search results, click the Add all link. The files selected for import display in the “Selected Files” section.

To import the selected file(s), click the Import button.
To remove all files from the “Selected Files” list, click the Clear All link.
To remove a specific file, click the X next to the file path.
After you click the Import button, the raw code for the current job displays. A summary displays the results of the file import, including the number of imported files and their Network File System (nfs) locations.
