Try it yourself

1. Copy "your-folder" anywhere on your computer (rename it if you like) and open it in Filer.
2. Turn it into a Filer folder, then paste the text of "instructions.txt" into its instructions and save.
3. Open "response-times.csv" in your folder, add this line at the end, and save:

   2026-09-20T10:45,/api/orders,850

   Watch the Activity view.

The web page this came from shows what you should see after each step.
