Quickly insert a basic table. On the View menu, click Print Layout or Publishing Layout. Click where you want to insert a table. On the Tables tab, under Table Options, click New, and then click and drag across as many rows and columns as you want. Word inserts the table into your document.
Please clarify - new rows at the bottom of a Table are appended automatically when you tab across the existing last row. Inserting columns/rows within the body is done the same as usual. Another option is to drag the ▟ at the lower right corner of the table - right to add columns, down to add rows. What exactly are you finding to be a problem? Also, please indicate the specific Version of your Office installation as shown in Excel About Microsoft Excel.
Please mark HELPFUL or ANSWERED as appropriate to keep list as clean as possible ☺ Regards, Bob J.