To add a row or column:
Hover outside the table where you want to add a row or column. Click the plus sign that appears.
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A new row or column will be added to the table.
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Alternatively, you can right-click the table, then hover over Insert to see various row and column options.
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To delete a row or column:
Place the insertion point in the row or column you want to delete.
Right-click, then select Delete Cells from the menu.
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A dialog box will appear. Choose Delete entire row or Delete entire column, then click OK.
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The row or column will be deleted..