diff --git a/.github/workflows/deploy-pages.yml b/.github/workflows/deploy-pages.yml
index ef9317f82..cb5972959 100644
--- a/.github/workflows/deploy-pages.yml
+++ b/.github/workflows/deploy-pages.yml
@@ -187,8 +187,6 @@ jobs:
           micromamba activate xeus-lite-host
           python -m pip install jupyterlite-xeus jupyterlite-core jupyterlab notebook libarchive-c
           jupyter lite build --XeusAddon.prefix=${{ env.PREFIX }} --contents notebooks/xeus-cpp-lite-demo.ipynb --output-dir dist
-          cp ${{ env.PREFIX }}/bin/xcpp.data dist/extensions/@jupyterlite/xeus/static
-          cp ${{ env.PREFIX }}/lib/libclangCppInterOp.so dist/extensions/@jupyterlite/xeus/static
 
     - name: Upload artifact
       uses: actions/upload-pages-artifact@v3
diff --git a/Emscripten-build-instructions.md b/Emscripten-build-instructions.md
index 301e487cb..832c64bf0 100644
--- a/Emscripten-build-instructions.md
+++ b/Emscripten-build-instructions.md
@@ -153,15 +153,6 @@ python -m pip install jupyterlite-xeus jupyter_server
 jupyter lite build --XeusAddon.prefix=$PREFIX --contents xeus-cpp/notebooks/xeus-cpp-lite-demo.ipynb
 ```
 
-We now need to shift necessary files like `xcpp.data` which contains the binary representation of the file(s)  
-we want to include in our application. As of now this would contain all important files like Standard Headers,  
-Libraries etc coming out of emscripten's sysroot. Assuming we are still inside build we should do the following
-
-```bash
-cp $PREFIX/bin/xcpp.data _output/extensions/@jupyterlite/xeus/static
-cp $PREFIX/lib/libclangCppInterOp.so _output/extensions/@jupyterlite/xeus/static
-```
-
 Once the Jupyter Lite site has built you can test the website locally by executing
 
 ```bash
diff --git a/docs/Emscripten-build-instructions.rst b/docs/Emscripten-build-instructions.rst
index 9eb7c2684..c3f396937 100644
--- a/docs/Emscripten-build-instructions.rst
+++ b/docs/Emscripten-build-instructions.rst
@@ -174,17 +174,6 @@ for testing execute the following
    python -m pip install jupyterlite-xeus jupyter_server
    jupyter lite build --XeusAddon.prefix=$PREFIX --contents xeus-cpp/notebooks/xeus-cpp-lite-demo.ipynb
 
-We now need to shift necessary files like `xcpp.data` which contains the
-binary representation of the file(s) we want to include in our
-application. As of now this would contain all important files like
-Standard Headers, Libraries etc coming out of emscripten's sysroot.
-Assuming we are still inside build we should do the following
-
-.. code:: bash
-
-   cp $PREFIX/bin/xcpp.data _output/extensions/@jupyterlite/xeus/static
-   cp $PREFIX/lib/libclangCppInterOp.so _output/extensions/@jupyterlite/xeus/static
-
 Once the Jupyter Lite site has built you can test the website locally by
 executing