How do I get my Word and Excel 2007 documents into the cloud? To answer this question, Google added .docx and .xlsx to the list of supported file formats for uploading documents (which already included .doc, .odt, xls, .ods, .ppt, .csv, .html, .txt, .rtf, and others). To import a .docx or .xlsx file, simply click the "Upload" button in your Docs List menu, select your file; your documents will get upload and convert in Google Docs.