Knowing if you're writing a review, an index entry, or a social media post will help me sharpen the draft for you.
Since the exact contents are private to that archive, here are a few options for the text you might be looking to draft, depending on your goal: Option 1: File Description / Cataloging
"Just added the archive to the collection. This set features [Artist's Name]'s signature style from late 2020. Always great to see the progression of their work during this period." Option 3: Technical Inquiry If you are asking for help with the file itself: