Software like 7-Zip or WinRAR to combine all parts into the final video file.

High-Efficiency Video Coding. This is a compression standard that allows massive 4K video files to be smaller in size without losing quality, compared to older standards like H.264.

This indicates the file was sourced directly from a streaming service (like Netflix, Amazon Prime, or Disney+). It is not a screen recording; it is a high-quality digital download, often having higher fidelity than web-rip counterparts.

Based on the file naming convention in your request ( themen-2160p-webdldovi-dual-pl-hevc-p2p.part11.rar ), this appears to be part of a high-definition, multi-part, HEVC-encoded video archive with Dolby Vision and dual-audio (likely Polish/English).