Just place it in your packages folder like any other sims 3 mods
The Sims 3\Mods\Packages

To uninstall just delete the 3 package files.

How to make your own animation replacement

Step 1: go to Sims 3 Main file. If you are using Origin or Steam just open file location.

Base Game animation location
The Sims 3\GameData\Shared\Packages\FullBuild0

Other EP location
The Sims 3\EPXX\GameData\Shared\Packages

Step 2: Extract a CLIP file into your selected folder

Step 3: Import the clip file into Blender. 
Make sure that you opened the adult rig and selected the entire rig/skeleton of the model first
then you import your clip

Step 4: Make the changes

Step 5: Save the CLIP file into your selected folder

Step 6: Open S3PE then select File > New

Step 7: You created a new S3PE then just click Resources > Import From File and select your edited CLIP file.

Step 8: Edit the CLIP group number. E.g. If you are doing Island Paradise animations,
the group should be 0x90000000

Step 9: Save your S3PE file and after that place the new S3PE File in your packages folder.

If this does not work then I will have to make a YT Video. 