Good day
Cardinal-Ifeatu,
To open a form on a web browser you need to publish the form to a SharePoint Server then tick the box which says Enable this form to be filled out by using a browser, then create a new library or choose an existing library if you already set-up one. After the form is successfully published, open your SharePoint Library then where you published it and click on Add document, this should open your form on a web browser.