Overwriting file on update form

Hey everyone,

I have an easy question I guess, which I am not able to figure out.

How can I overwrite a file (img) on an update form, so that the file is updated.

I went through the documentation on uploading file with server connect however there isn’t any mention on updating files except for the overwrite check box that is available but I don’t know how to use it?

I am storing the file url on upload on the create form but I don"t know how to update the file on an edit/update form.

Regards,