Windows
Step 1: Press Win + R to open the Run dialog.
Step 2: Paste the following path:
%ProgramData%\Blackmagic Design\DaVinci Resolve\Support\Workflow Integration Plugins
Step 3: Press Enter and paste your downloaded Workflow Integration files in this folder.
Mac
Step 1: Open Finder.
Step 2: Press Cmd + Shift + G.
Step 3: Paste this path:
/Library/Application Support/Blackmagic Design/DaVinci Resolve/Workflow Integration Plugins
Step 4: Press Enter/Go and place your Workflow Integration files here.
Linux
Step 1: Open your File Manager.
Step 2: Press Ctrl + L to type a path directly.
Step 3: Paste the path:
/opt/resolve/Fusion/Workflow Integration Plugins
Or, on some distros:
/home/[your_username]/.local/share/DaVinciResolve/Workflow Integration Plugins
Step 4: Hit Enter and place your Workflow Integration files here.