How to redirect open of specific files (.html) to a custom file handler in SharePoint Server 2019/Subscription Edition?

Question

We have an HTML file editor, and we want a way in which our file editor is invoked when a user clicks on any .html file (in the "Name" column of a SharePoint Document Library). We do not want the default SharePoint behavior of other (non-HTML) file types to be affected. Is there any way in which this can be achieved?

So far, we have tried using SPFx Field Customizer and Column Formatter, but in both these cases, the behavior of non-html files is also affected.

On top of that, in both of these approaches, we also lose the "Share" and "Context Menu" buttons next to the filename in the "Name" column of the Document Library, which is not ideal.

The ideal behavior that we want is the user to get redirected to our custom url when they click on the name of an HTML file, leaving all other default SharePoint behaviors as they are.

Our use case is only SharePoint 2019/Subscription Edition modern UI.

Any guidance on how this can be implemented would be greatly appreciated.

Answer 1

Hi @Raghunandan Kumbhar ,

As per my knowledge, I'm afraid it is impossible to redirect open of specific files (.html) to a custom file handler in SharePoint Server. I suggest you open a ticket with Microsoft. Experts there may help find workarounds.

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