I’d love to help you draft that blog post! To make it actually useful for your readers, I need to know a little more about what’s inside that archive or what you’re trying to achieve.
"Download the L1 Graphics Overhaul for [Game Name]..."
L1MD.7z looks like a compressed file (using the 7-Zip format ), and while "L1MD" could stand for many things (like "Level 1 Metadata," a specific project code, or a gaming mod), the post will be much better if we tailor it to your specific niche.