To see what’s inside, you cannot just open Part 5. You generally need (Part 1, Part 2, etc.) saved in the same folder to successfully extract the data. Step-by-Step: How to Extract the Content
Ensure you have every numbered segment in the sequence. If one is missing, the extraction will fail. Use the Right Tools: Download WinRAR or 7-Zip . 92BT95RT94NM96T9494933.part5.rar
Do you have the of this specific archive, or are you trying to identify the contents of the file? To see what’s inside, you cannot just open Part 5