: Use the command line with 7z l pl0015.7z to list the files within the archive before extracting them. Safety and Verification
: Download the free, open-source tool from the official 7-Zip website. Once installed, right-click the file, select 7-Zip , and choose "Extract files..." or "Open archive" to browse the contents without extracting.
: Right-click the file and select "Extract All…" directly in File Explorer, as recent updates now support .7z files natively.