Extract to "CD-YOGA-5/" : Creates a new folder named after the file and puts the contents inside (the cleanest method).
You cannot open a .7z file with standard Windows "Compressed (zipped) Folder" tools. You will need one of the following: CD-YOGA-5.7z
This usually means the download was interrupted. Try downloading the file again. Extract to "CD-YOGA-5/" : Creates a new folder