So as with the majority of our libraries, the downloads are in zip files and need to be uncompressed to reveal the folder files of that library, and then its just a matter of copying the folder into the relevant synths preset folder. Some libraries have there own installation method eg Presence XT will have a soundset file and Omnisphere v2 has its own packed install file.
We always recommend to have your DAW (digital audio workstation ) closed before the install. Sometimes in Studio One you might not see the installed library in the browser, so in this case its just a matter of right clicking on the instruments icon and selecting refresh. You should now see the library in the browser and in the drop down preset menu inside the instrument.
This method should be applied to all DAW’s if you are not seeing the installed library.