File Upload – Formats Allowed

Hi everybody,

I’m trying to create a form for quotations.
In this form, I would like to allow the customer to upload files like .step or .igs

Unfortunately, that file extensions are not in the default file extensions of WordPress and I believe that is the reason why I’m not able to do it.

I already tried all kind of tricks, including editing the html to allow those extensions, nevertheless the form is never submitted.

Some help will be much appreciated.

Thank you.

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