The file does not appear to be a publicly documented or standard file associated with a widely known software package or text repository. Based on general technical knowledge and search results, "7z" is a compressed archive format created by the 7-Zip archiver .
Use the command 7z e YesPlease.7z to extract the contents to your current directory. YesPlease.7z
Use apps like Unzip One to open and extract 7z files. The file does not appear to be a
Right-click the file and select Extract Here or Open Archive to view the text files inside. YesPlease.7z