Merge cells
You can combine two or more table cells located in the same row or column into a single cell.
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Select the cells to merge.
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On the table's Layout tab, select
Split cells
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Select one or more cells to split.
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On the table's Layout tab, select
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Enter the number of columns or rows that you want to split the selected cells into.
Tip: If your table doesn't have borders, you can turn on gridlines. Select anywhere in the table, and on the Layout tab next to the Table Design tab, choose 
You can combine two or more cells and their contents in the same row or column into a single cell.
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Select the cells to merge.
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On the Layout tab next to the Table Design tab, select
Tip: If your table doesn't have borders, you can turn on gridlines. Select anywhere in the table, and on the Layout tab next to the Table Design tab, choose
