You can view the contents without extracting by right-clicking, selecting "7-Zip," and choosing "Open archive".
The archive may contain executable files; it is recommended to scan the contents for viruses after extraction. Sample_lee_lee.7z
Based on the filename provided ( Sample_lee_lee.7z ), this is a compressed archive file utilizing the format, which is known for high compression ratios and strong AES-256 encryption capabilities. You can view the contents without extracting by
How can I get a content-listing of a 7z-archive under Linux? Sample_lee_lee.7z