WinRAR uses the .partX.rar extension to ensure that when extracted, the resulting folder or file uses the common "stem" name rather than individual part names. Extraction Requirements To access the contents of this file, you generally need:

You typically only need to right-click and extract the first part ( .part1.rar ); the software will automatically find and pull data from the subsequent parts, including part4. Common Uses Multi-part RARs are frequently used for:

Tools like WinRAR , 7-Zip , or The Unarchiver are required to reassemble the pieces.

Splitting high-definition movies or large software installers.