7-Zip is a popular, free tool that supports the extraction of RAR archives.

A RAR file is a proprietary archive format used for data compression and file grouping. It is often used to bundle multiple related items—such as datasheets, PCB schematics, and driver software—into a single, smaller package for easier distribution. How to Access the Contents

Could you provide on where you found this file or what piece of hardware it belongs to? Knowing the manufacturer (e.g., KEMET, Renesas, or Microchip) would help in finding the specific article or manual you need.

To view the "article" or documents inside this specific archive, you must first extract them using compatible software:

It is recommended to use a security tool like Avast or AVG to scan the .rar file before extraction to ensure it is safe.