On this page, you will see several builds. Look for the one specifically labeled:
Open your Skyrim Special Edition root folder (where SkyrimSE.exe is located). Copy the following files from the extracted SKSE folder and paste them directly into the root folder: skse64_1_6_342.dll skse64_loader.exe skse64_steam_loader.dll 4. Install the Data Folder skse 16342