I have created a Dash App with callbacks that gets its data from an Excel File. I want it to be the case that every time the Excel file is updated (eg, every time it is saved), I trigger a hot reload in Dash. I assume then Dash would read in the updated Excel file.
How can I get my Dash App to “watch” this Excel file for changes? I would prefer to do it without using DCC Interval because I want the app to update as soon as a change is made to the Excel file.