Dear Employer,
According to the project description, the required skills are Excel and Data entry. As a lifelong user and trainer of Excel, I believe I am the most suitable candidate for the job. Also, as I am just starting out in the Freelancer community, I will work twice as hard as any other bidders, as I want to build my reputation as an dependable professional who gets the work done on time, every time.
Beyond the above, I believe my work shall speak for itself.
-Prashant.