使用JavaScript Office API以编程方式打开Excel文档

如何使用javascript office API以编程方式打开文档?

How to programatically open a document using javascript office api ?

是否可以使用javascript office api插入文档，还是可以访问文档xml?像这样

Is there a way to insert a document using javascript office api Or to get access to the document xml ? Something like this

Excel.run(function (ctx) { 
    var application = ctx.workbook.application;
    application.load('newXmlWorkbook', worbookInXmlFormat);
    return ctx.sync().then(function() {
        console.log(application.calculationMode);
    });
}).catch(function(error) {
        console.log("Error: " + error);
        if (error instanceof OfficeExtension.Error) {
            console.log("Debug info: " + JSON.stringify(error.debugInfo));
        }
});