Do you have the or the context of where this file was listed? Knowing that would help me identify what the actual "topic" or content is.
To help you figure out what's inside or if it's safe, you might want to look at: 948E8GT95CB689T8A824.part4.rar
Since this looks like part of a multi-part set, you will typically need (part1, part2, etc.) in the same folder to extract the actual content. Do you have the or the context of where this file was listed