Open the downloaded file and locate Release/cleaner.ext.2.csgo(.dll for Windows and .so for Linux) and cleaner.autoload
Copy these files to csgo/addons/sourcemod/extensions/ Note: Cleaner is blocked by anti-virus software in some cases which can make it problematic to download and install.
Locate csgo/addons/sourcemod/configs/ and create a new file named cleaner.cfg (ensure you change the file extension to .cfg and that you dont have cleaner.cfg.txt)
RNGFix
Installation
Open the downloaded file and copy the contents to csgo/
MomSurfFix
Installation
Open the downloaded file and copy the contents to csgo/