I can't find the export button on my iPhone

The export button, seen left, circled in red, looks like a small box with a blue arrow coming up from the center of it. Once you click this button, you'll be able to decide where to save the contact card.
The export button, seen left, circled in red, looks like a small box with a blue arrow coming up from the center of it. Once you click this button, you'll be able to decide where to save the contact card.