In export Options, you can set the custom file name for the exported file to get predictable URL.
This is especially useful together with scheduled and auto-repeated exports because that will make your exported file to always have the name and the URL you expect. You can use that to further automate your process.
Enter the file name without the file extension.
You can find out the URL of the file after the first export – in the “History & Schedule” page.
You also can use dynamic placeholder in the export file name, like described in this tutorial.