create a excel document in appian Knowledge Center

Question

I have a requirement where i need to create a excel with some content. 
 
 I wrote some java code to create the excel, now i want that excel to be store in Knowledge Center. 
 
 I need help to know how can i write create a document of type xlsx in appian and write the data to that document and store in Knowledge Center. 
 
 Thanks 
 Pradeep

John M · Accepted Answer

When creating the document you can use new Document(folderId, documentName, fileExtension) which you can pass in "xlsx" as the fileExtension parameter. 
 You could also do it individually by using 
 Document d = new Document(); d.setName(name); d.setExtension("xlsx"); d.setParent(folderId); 
 You could then (after creating the Appian document) use a FileOutputStream to get your Excel data into the document (depending on the library you're using).