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Office Apps Freezing

Fix Excel Freezing When Applying Subscript or Superscript Formatting

Nimra MalikNimra Malik Oct 26, 2026 869 views

Question details

Excel becomes unresponsive and freezes intermittently when attempting to format text characters within a cell as subscript or superscript.

How to Fix Excel Freezing When Applying Subscript or Superscript Formatting
Product
Microsoft Excel
Device & OS
Windows 11
Scenario
Formatting specific characters within spreadsheet cells.
Observed behavior
The application hangs and completely freezes upon applying subscript or superscript formatting, persisting even after restarting the PC, and updating, repairing, or reinstalling Office.
Before you start

Before proceeding with system and application repairs, please ensure you have saved any open workbooks and closed other unnecessary background programs to prevent potential data loss.

Solution 1Recommended

Test Excel in Safe Mode and Disable Faulty Add-ins

Running Excel in Safe Mode bypasses custom settings and add-ins, helping identify if a third-party plugin is responsible for the freezing issue.

Third-party add-ins or corrupted macro files are common culprits for isolated formatting freezes in Excel. Safe Mode allows you to isolate the application's core functions.

1
Launch Safe Mode

Press Windows + R on your keyboard, type 'excel /safe' into the Run dialog box, and press Enter to open Excel in Safe Mode.

2
Test the Formatting

Open a blank workbook, enter some text, and attempt to apply subscript or superscript. If it does not freeze, an add-in is likely the cause.

3
Disable COM Add-ins

Go to File > Options > Add-ins. At the bottom of the window, select 'COM Add-ins' from the Manage drop-down menu and click 'Go'.

4
Apply Changes

Uncheck all listed add-ins to disable them, click OK, and restart Excel normally to verify if the issue is resolved.

Test Excel in Safe Mode and Disable Faulty Add-ins
WPS Spreadsheet Solution

Apply Subscript and Superscript Smoothly in WPS Office

If Excel continues to freeze during formatting, you can use WPS Spreadsheet to complete your work seamlessly. WPS Office is highly stable, free, and fully compatible with Excel files, allowing you to easily apply rich text formatting without crashing.

  1. 1. Open Your File in WPS: Launch WPS Office and open your existing Microsoft Excel (.xlsx) document.
  2. 2. Select the Text: Double-click the target cell and highlight the specific character or number you want to format.
  3. 3. Open Font Settings: Right-click the highlighted text and select 'Format Cells', or press Ctrl + 1 on your keyboard.
  4. 4. Apply the Format: Navigate to the Font tab, check the 'Subscript' or 'Superscript' box located under the Effects section, and click OK.
Apply subscript and superscript formatting instantly without application hangs.Fully compatible with Microsoft Excel .xlsx and .xls file formats.Lightweight architecture that runs smoothly on Windows 11.Familiar tabbed interface requiring no steep learning curve.
microsoft office alternative - wps office

Frequently Asked Questions

Why does Excel freeze only when I apply certain formatting?

Formatting crashes in Excel are typically caused by conflicts with third-party COM add-ins, outdated display rendering drivers, or corrupted Windows user profiles failing to process the visual change properly.

Does an Office Online Repair fix formatting freezes?

Yes, an Online Repair downloads and replaces core application files. This often resolves deep registry or file corruption issues that standard reinstallations or offline repairs might skip.

How do I apply subscript or superscript without using the ribbon menu?

You can highlight the specific text within the active cell, press Ctrl + 1 to open the Format Cells dialog box directly, check your desired Subscript or Superscript box, and hit Enter.