←Module 5
Lesson · 10 min

Modifying Tables

Learn how to add and delete rows and columns, merge and split cells, resize columns, and apply table styles in Microsoft Word.

By the end of this lesson you can

  • Add and delete rows and columns precisely
  • Merge and split cells to build headers that span columns
  • Resize columns to fit content using AutoFit
  • Apply table styles that aid reading rather than decorate

Video

Watch the lesson video, then complete the reading and challenge.

Lesson Notes

Read through the key concepts before you try the challenge.

Table formatting should make data easier to read

On the job

You are formatting the quarterly supply report at Lakeside Medical Associates.

The table is accurate and nobody can read it. Every cell has a heavy border, the header row looks identical to the data, and the columns are all the same width whether they hold a date or a paragraph. The reader has to work to find anything.

Your task: Format the table so its structure does the reading work — headers that announce themselves, columns sized to their content.

Merging cells combines adjacent cells into one, which is how you build a header spanning several columns — a single 'Q3 Expenses' cell above three month columns. Splitting does the reverse. Both are on the Table Layout tab, and both operate on whatever you have selected.

For column widths, AutoFit to Contents (Table Layout > AutoFit) sizes each column to what it actually holds, so the date column stops being as wide as the description column. It is one click and it fixes most of what makes a table look amateurish.

DoInstead ofBecause
Bold header row with a fillHeaders styled like dataThe reader needs to see where the labels are
Light horizontal rules or banded rowsA full grid of heavy bordersBorders on every cell compete with the data for attention
Right-align numbersLeft-align everythingAligned decimal points make columns of figures comparable at a glance
AutoFit to ContentsEqual-width columnsColumn width should reflect what the column holds
Table formatting that helps, and formatting that hurts
Merged cells complicate screen reader navigation and can break sorting. Use them for genuine spanning headers, and avoid them inside the data area of a table someone may need to sort or read with assistive technology.

Adding Rows and Columns

Right-click a cell and choose Insert to add rows above or below, or columns to the left or right. You can also hover over the edge of a row or column to see the quick-insert (+) button.

Insert row options in right-click menu
Quick-insert plus button on table edge

Deleting Rows, Columns, and the Table

Select the row or column you want to remove, right-click, and choose Delete Rows or Delete Columns. To delete the entire table, right-click and choose Delete Table.

Delete Rows option in right-click menu

Merging Cells

Select two or more adjacent cells, go to the Layout tab, and click Merge Cells. The selected cells combine into one, which is useful for spanning a header across multiple columns.

Cells selected for merging
Merged cell spanning multiple columns

Splitting Cells

Select a cell, go to the Layout tab, and click Split Cells. Enter the number of columns and rows to divide the cell into, then click OK.

Split Cells dialog box

Resizing Columns and Rows

Drag the column or row border to resize manually. For precise sizing, select a column and use the Width field in the Layout tab's Cell Size group. Click AutoFit → AutoFit Contents to resize all columns to fit their content automatically.

Dragging a column border to resize
AutoFit Contents option in Layout tab

Applying Table Styles

Click inside the table, go to the Table Design tab, and browse the Table Styles gallery. Hover over any style to preview it on your table, then click to apply.

Table Styles gallery on the Table Design tab
Table with a formatted style applied

Knowledge Check

Check your understanding

What does the Merge Cells command do in a Word table?

Practice File

Download this file and follow along with the lesson.

Challenge

Apply what you've learned in this lesson.

Complete the following tasks:

  1. Open the practice table and add a new row at the bottom.
  2. Delete the third column from the table.
  3. Merge the cells in the first row across all columns to create a spanning header.
  4. Use AutoFit Contents to resize all columns to fit their text.
  5. Apply a Table Style of your choice from the Table Design tab.

Finished this lesson?

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