Office for Mac Issues

Fix Excel for Mac Freezing When Duplicating Sheets or Adding Rows

Rana GarciaRana Garcia Oct 28, 2026 868 views

Question details

The user experiences freezing or crashing in Excel for Mac when attempting to duplicate worksheets or insert new rows.

How to Fix Excel for Mac Freezing When Duplicating Sheets or Adding Rows
Product
Microsoft Excel
Device & OS
macOS
Scenario
Duplicating worksheets or inserting rows into an existing spreadsheet.
Observed behavior
Excel becomes unresponsive or crashes entirely, often generating a SIG_HANG_QUIT report that references OfficeArt and Microsoft Error Reporting.
Before you start

Save any other open documents and manually back up your current Excel file to an external drive or cloud storage to prevent data loss during troubleshooting.

Solution 1Recommended

Update Software and Boot into macOS Safe Mode

Ensure your system and applications have the latest bug fixes, and use Safe Mode to rule out background app interference.

Running outdated software is a common cause of unexpected application crashes. macOS Safe Mode helps identify if background processes or conflicting software are causing Excel to freeze during heavy operations like sheet duplication.

1
Check for macOS Updates

Go to the Apple Menu > System Settings > General > Software Update to install any pending system updates.

2
Update Microsoft Office

Open Excel, navigate to Help > Check for Updates in the top menu bar, and install available Microsoft Office updates.

3
Restart in Safe Mode

Restart your Mac and press and hold the Shift key immediately as it boots up to enter Safe Mode.

4
Test Excel Functions

Open the problematic Excel file while in Safe Mode and attempt to duplicate a sheet or insert rows to see if the freeze still occurs.

Update Software and Boot into macOS Safe Mode
About Safe Mode: Safe Mode clears system caches and disables third-party login items, helping to isolate software conflicts causing the crash.
Free Microsoft Office alternative

Switch to WPS Office for a Stable Spreadsheet Experience

If Excel for Mac continues to freeze or crash, consider switching to WPS Office. It offers a lightweight, highly stable spreadsheet environment that handles large data operations smoothly while maintaining seamless compatibility with your existing workbooks.

  1. 1. Install WPS Office for Mac: Download and install the free WPS Office suite for your macOS device.
  2. 2. Open Your Workbook: Launch WPS Spreadsheets and open your existing Excel file directly.
  3. 3. Work Smoothly: Duplicate sheets and add rows effortlessly without experiencing application crashes.
Highly stable performance when duplicating complex sheets or adding rowsFull format compatibility with Microsoft Excel (.xlsx, .xls, .csv)Free, lightweight, and consumes fewer macOS system resourcesFamiliar user interface allowing for instant and seamless migration
microsoft office alternative - wps office

Frequently Asked Questions

Why does Excel for Mac crash specifically when duplicating a sheet?

This typically occurs due to corrupted formatting, hidden objects, or complex OfficeArt elements within the sheet that overwhelm the application's memory allocation during the duplication process.

What does a SIG_HANG_QUIT error mean on a Mac?

A SIG_HANG_QUIT error indicates that an application stopped responding to the macOS operating system (a 'hang') and was forced to quit. In Excel, it usually points to an internal process loop or component failure.

Will reinstalling Microsoft Office fix the freezing issue?

Reinstalling can help if the application files themselves are corrupted. It is recommended to completely uninstall the suite using the official removal process before reinstalling to ensure all problematic background files are cleared.