Check the site or forum where you found the link. Users often post "file lists" or descriptions of the specific artist or model included in that volume.
Part of a set (Volume 10), implying there are likely 01 through 09 available from the same source. tinysister (10).rar
Files with this naming convention—specifically parentheses with a number—usually indicate they are part of a larger multipart series (e.g., Part 10 of a collection). Check the site or forum where you found the link
Likely a collection of high-resolution images or a short video clip. tinysister (10).rar