If you can tell me a bit more, I can help you track down exactly what you need:
"Extract the contents of NullStudio_-_Animation_-_Update-2023-02-02.zip into your project's Assets/Animations folder, overwriting any existing files from the previous version." NullStudio_-_Animation_-_Update-2023-02-02.zip
If you need the text to know where to put the files, it's usually: If you can tell me a bit more,
Usually, an update file like this includes a text file ( readme.txt or changelog.txt ) inside the ZIP. If you can't open the file yet, it generally covers: Update 2023-02-02 it's usually: Usually
Resolved clipping issues or bone weight errors found in previous versions.