> For the complete documentation index, see [llms.txt](https://nouthemes-1.gitbook.io/meow-bigcommerce/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nouthemes-1.gitbook.io/meow-bigcommerce/edit-theme-file-change-code-default/edit-theme-files.md).

# Edit Theme Files

After you click on Edit Theme Files, you will see the files that you can edit on the left side. You can interact with the files that are not grayed out. After making the necessary changes, you can choose Save File or Save All Files.

Note: To edit JavaScript files, you need to use the [Stencil CLI](https://developer.bigcommerce.com/docs/storefront/stencil/cli/install).