This page shows how rollMyFile.js API can be used to open documents in applications that is running "embedded" into a page of another web application.
var key = "64OkPEEXRIuIC6yb8ilZYB4VRsgciYyEHF25FARR";
var rollMyFile = new RollMyFile(key);
$(function(){
rollMyFile.initEmbeddedIframe($('#app-frame')[0]);
$('#open-doc').click(function(){
rollMyFile.openFileByUrl('https://calibre-ebook.com/downloads/demos/demo.docx');
});
$('#open-xls').click(function(){
rollMyFile.openFileByUrl('https://ol.baker.edu/webapps/dur-browserCheck-bb_bb60/samples/sample.xlsx');
});
});