Open from device option allows you to select any diagram with the .drawio extension stored on your device and update it using the editor. The selected diagram will be saved in the page’s attachments.
After you click the Open from device button, the file manager will be shown.
Note: only files with .drawio extension are available for selection, no more than one file at a time.
After you select the diagram, it will be opened in the editor.
When you have finished working with the diagram, click the Save & Exit button to save the changes and exit editor or Exit to discard the changes made (if any) and leave.
After that, you'll see the preview of the uploaded diagram.
