Saving Worksheets as Local Files
You can download worksheets to your computer by clicking the Save icon present at the top right of each worksheet. Tables and highlights save as CSV files, while charts and graphs with visualization elements (all other worksheet types) save as PNG files.
For charts and graphs that save to image files (PNG format), you will be prompted to choose an image size from the Image Sizes dialog box that appears.
The same functionality is present when saving and downloading worksheets from dashboards by clicking the Save icon at the top right of a worksheet window.
Downloaded worksheets are read-only and can't be interacted with in the same way as in a project, or loaded into a project.
See the video below for a walk-through of how to save a worksheet as a local file: