how to configure webpack to exclude certain modules from a library?

I have a React app that imports a library (in the node_modules directory, of course).

The name of the library is @lib/schema.

In the react app, modules of this library are imported like so:

import { module_name } from "@lib/schema"

There is a certain file in the @lib/schema that is currently being included in the final bundle, which is located in this path:

src/path/to/large_file.js

The file is never used by the app and thus unnecessarily increases the size of the bundle.

The React app currently uses react-scripts to create the bundle.

Questions:

1. If the React app were to continue to use react-scripts, how to configure it to exclude src/path/to/large_file.js?
2. If the React app were to use webpack, how to configure it to exclude src/path/to/large_file.js?