Zip file in File Association is Missing. How to restore? - Microsoft Learn
A file ending in .R02 or appearing as RA02 is typically the third piece of a larger dataset (starting from part 00, then 01, and 02). To successfully access the contents, you cannot simply open the "02" file alone. You must have of the archive downloaded and saved in the same folder. How to "Put Together" and Extract the Files Download File RA02.zip
Guide to Handling and Extracting Multi-Part Archives (RA02 Files) Zip file in File Association is Missing