RAR files act as digital containers that bundle multiple files or folders into a single, smaller package to save storage space and speed up internet transfers.

Since "LDBVKFY" is not a recognized name, exercise caution if you encounter this file from an unknown source. How to Open RAR Files on Windows, Mac, and Mobile - Avast

RAR supports multi-volume spanning (splitting large archives into parts), AES-256 encryption, and recovery records to repair damaged data.