Hello, nice to meet you employer!
After some experience in research and considering my passion for social rights, I would really like to do this work for you and I'll do my best to take to do it exactly as you need it and in the fastest way possible. I'm willing to work even on Sunday, it's not a problem, my goal is to deliver an excel sheet to show you my seriousness and reliability.
Thanks for your attention, I hope you will consider my offer. Please, contact me for further details,
Laura