In interfaces containing file fields (including attachment fields), you can preview files by clicking on the file thumbnail or icon. The built-in preview function supports various file types, including images, PDFs, and most file types natively supported by browsers.

For file types that do not support native preview, you can enable preview functionality by installing or extending the corresponding file preview plugins. For example, after installing the Office File Preview plugin, you can preview Word, Excel, and PowerPoint files.
Currently, NocoBase provides the following file preview plugins: