Formatting Issues

Fix Excel Text Spilling into Adjacent Cells on Mac

Maira Mehtab Sep 22, 2026 869 views

Question details

The user is experiencing an issue where text in Excel cells overflows into adjacent cells on a Mac, even after attempting to apply text wrapping and autofit functions.

Product: Microsoft Excel
Device & OS: Mac
Scenario: Formatting spreadsheet data for proper display without overlapping into neighboring empty cells.
Observed behavior: Text continues to extend past the cell boundaries into neighboring cells instead of properly containing itself within the column width, often complicated by bold text or border formatting.

Before you start

Before making column adjustments, verify that there are no merged cells adjacent to your target column, as merged cells can frequently interfere with AutoFit and column resizing tools.

Solution 1Recommended

Manually Widen the Column

Manually dragging the column divider is often the most reliable way to force the column to accommodate font variations, bold text, or borders.

In some cases on macOS, Excel's AutoFit algorithm may fail to account for extra pixels added by bold formatting or thick cell borders. Forcing the width manually bypasses this glitch.

Locate the column header

Hover your cursor over the vertical divider line between the column headers of the affected cell and the adjacent one (e.g., between columns R and S).

Drag to resize

Click and drag the divider to the right until the text no longer spills over into the adjacent cell, then release your mouse.

Quick Tip: Double-clicking the divider line is the shortcut for AutoFit, but if that fails, dragging it manually ensures you get the exact width you need.

Solution 2

Apply AutoFit Selection via Format Menu

Use the built-in Format menu to trigger an automatic recalculation of the required column width.

Solution 3

Adjust Font, Borders, and Bold Formatting

Certain text formatting options take up extra pixel space, causing unexpected spillage when columns are rigidly sized.

Try WPS Spreadsheets

Easily Prevent Text Spill with WPS Spreadsheets

Manage column widths and text wrapping effortlessly using WPS Office, a fully compatible and lightweight alternative for your spreadsheet tasks on Mac.

1. Open your file: Launch WPS Office on your Mac and open your existing spreadsheet.
2. Select the target column: Click the column header (e.g., 'R') to select the entire column where text is spilling.
3. Navigate to formatting tools: Go to the 'Home' tab on the ribbon and click on the 'Rows and Columns' icon.
4. Apply AutoFit: Select 'AutoFit Column Width' from the drop-down menu to instantly adjust the size to fit your text perfectly.

100% compatible with Microsoft Excel (.xlsx) file formatsIntuitive AutoFit and column width controls that easily adjust to your textFree to use for everyday spreadsheet formatting and data analysisCross-platform support for seamless workflow on Mac, Windows, and Linux

microsoft office alternative - wps office

Frequently Asked Questions

Why doesn't AutoFit work sometimes in Excel for Mac?

AutoFit may fail if the text contains manual line breaks (Option+Return), if the cell is part of a merged range, or if specific thick borders and bold fonts interfere with the internal width calculation.

How do I stop text from spilling without changing the column width?

You can apply 'Wrap Text'. Select the cell, go to the Home tab, and click the 'Wrap Text' button. This will expand the row height to accommodate multiple lines instead of increasing the column width.

Can I hide the overflowing text instead of resizing the column?

Yes. You can either type a space character in the adjacent empty cell to block the spill, or select the overflowing cell, press Cmd+1 to open Format Cells, go to the Alignment tab, and set Horizontal alignment to 'Fill'.

Does changing the font style affect cell width requirements?

Yes, applying bold or italic formatting, or changing the font family entirely, alters the character pixel width. This can cause previously contained text to spill if the column width remains rigid.

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