Here is a deep dive into what these types of files represent and how to handle them. What is "Star Sessions"?
: Right-click only on Part 1 and select "Extract Here." The software will automatically "stitch" the data from the other parts together to recreate the original file. Staying Safe Online Star Sessions - Lisa.part1.rar
: You cannot extract .part1.rar on its own. To see what’s inside, you must have every single part of the set (Part 2, Part 3, etc.) in the same folder on your computer. Here is a deep dive into what these