Google Cloud Connect for Microsoft Office works on Windows 7, Vista, and XP but not Macs. It syncs Word files like DOC, DOCX, DOTX, and DOCM. It also syncs Excel files like XLS, XLT, XLSX, and XLSM. Finally, it syncs PowerPoint files like PPT, POT, PPS, PPTX, POTX, PPSX, PPTM, and POTM.