R0817.7z -

To create a "solid" archive with the .7z format (like your R0817.7z file), follow these instructions based on the official 7-Zip documentation . What is a Solid Archive?

A solid archive concatenates multiple files and treats them as a single, continuous data stream. This significantly , especially for many similar small files, but makes individual file extraction slower and data recovery more difficult if the archive becomes corrupted. How to Create a Solid Archive R0817.7z