Update of the form using XLS format

I created the form using the new interface and when I tried to use legacy interface it did not show the active part of uploading and updating the form through XLS format. what should I do? and if possible How can I use the new interface to update the form using XLS format?


Why would you like to use the legacy to update an existing survey project (xlsform) when you uploaded your xlsform through the new interface and you also have an option in the new interface to replace (update) your existing xlsform and then redeploy the survey project?