Dear Hiring Manager,
I am very good at MS excel & MS word, and I'm very interested in your job post involving these skills.
I believe my skills would be ideal for your project.I am available to chat by email or Skype, and would be happy to set up a convenient time to discuss the application you're moving.
If you give this work I will complete this as early as possible within 5 days and try my best to give effort to complete this.
Dear Hiring Manager,