How can I insert a file type input box that can take an HTML format file as input?

“File” input widget does not allow loading HTML format files

Hi there @Federico and welcome to Tulip Community! :tada:

You should be able to input a html file into the file input widget and another option is to use the text input widget as well (see screenshot below).

If I am misunderstanding something in your question here, feel free to provide a little more detail about what you are looking to do and we can keep debugging together :slight_smile: