Files are often split into parts to make them easier to upload to cloud storage or send via email when they exceed size limits. How to Open and Extract It
The .part3.rar extension indicates this is the third piece of a larger file that was split during compression.
LibGuides: Data Management Planning: File Naming and Formats
The string 20221202 within the filename likely represents a date (December 2, 2022), suggesting the file was created or archived on that day.