The competition between Google Docs & Spreadsheets and Microsoft Office was never confirmed by the two companies but every once in a while the super giant Google adds new features into its web-based product. Today, the Mountain View firm introduces a new function for Spreadsheets that is now able to auto-fill some cells depending on the data entered by you in the previous ones. Just like in Microsoft Office, you can do this by selecting the cells and then, using the drag and drop support by moving your mouse cursor to auto-complete the empty ones.