If this is a financial system file, "RP" often stands for "Reporting" or "Release Package." is used to manage revenue recognition standards like IFRS 15 and ASC 606.
Use WinRAR or WinZip to open the compressed .rar archive. 1102_2_RP.rar
Look for a readme.txt or .pdf inside, which typically outlines configuration steps for contract management or performance obligations. If this is a financial system file, "RP"