I have been a PC games enthusiast since birth, and have written for PC gaming sites and magazines before, with a strict word count guideline like the one specified. I looked over your sample excel document and I would know how to get the required information extremely quickly, so I could probably complete the project quicker than 3 days, but in order to be as professional as possible, I set it at 3 days, so that if any questions or problems occur I can still deliver in an optimal time period.
I often participate in gaming conversations and know the language gamers respond to. As well, I have been praised for having a knack for games writing and creativity. I studied writing in college and after college, and have worked professionally as an editor and writer, both hired and freelance, in many different kinds of jobs. I know how to create professional, yet creative summaries that will jump at a reader and will likely not be skimmed or ignored.
It would be a pleasure to work on your project.