Convert Google Doc to Docx using Google Script - ms-word

Question

Is it possible to convert a Google document to a Word docx file programmatically using Google Script ?

Answer 1

This should work
function myFunction() {
var token = ScriptApp.getOAuthToken();
//Make sure to replace the correct file Id
// Fetch the docx blob
var blb = UrlFetchApp.fetch('https://docs.google.com/feeds/download/documents/export/Export?id=<ID_of_Google_Document>&exportFormat=docx',
{
headers : {
Authorization : 'Bearer '+token
}
}).getBlob();
//Create file in Google Drive
var file = DriveApp.createFile(blb).setName('<name_of_exported_file>.docx');
//Put the file in a drive folder
DriveApp.getFolderById('<FOLDER_ID>').addFile(file);
}

Answer 2

Quoting from this item on the issue tracker...
You can convert a Google Document to docx today using the Drive
Advanced Service:
https://developers.google.com/apps-script/advanced/drive
Here is a small example:
function convertToDocx(documentId) {
var file = Drive.Files.get(documentId);
var url = file.exportLinks['application/vnd.openxmlformats-officedocument.wordprocessingml.document'];
var oauthToken = ScriptApp.getOAuthToken();
var response = UrlFetchApp.fetch(url, {
headers: {
'Authorization': 'Bearer ' + oauthToken
}
});
return response.getBlob();
}