Fix Microsoft Word Equation Editor Changing Escaped Underscores in LaTeX
Question details
The user wants to prevent the Microsoft 365 Equation Editor from rewriting escaped underscores and other LaTeX commands when switching between Linear and Professional display formats.

- Product
- Microsoft Word
- Device & OS
- not provided
- Scenario
- Writing mathematical equations using LaTeX syntax in Microsoft Word and toggling the display formats.
- Observed behavior
- When converting from Professional to Linear format, escaped underscores and certain LaTeX commands are automatically altered or removed by the Equation Editor.
Ensure your Microsoft Office application is updated to the latest version, as equation editor parsing behaviors and LaTeX support frequently change across different Office update channels.
Submit a Bug Report via Microsoft Word Feedback
Since this is a known reproducible bug in the Microsoft 365 Equation Editor, reporting it directly to the development team is the primary action required for a permanent fix.
Microsoft actively monitors user feedback to identify bugs in the Equation Editor. Providing the exact LaTeX input and output helps their engineers patch the specific update channel.
Launch Microsoft Word, navigate to the top ribbon, and click on the 'Help' tab.
Click on 'Feedback' or 'Contact Support' from the available menu options.
Select 'Report a Problem'. In the text box, include the original LaTeX code, the converted result with missing underscores, your exact Office version, and the update channel.

Apply Formatting Workarounds for LaTeX Equations
If you cannot wait for an official Microsoft patch, you can adjust how you input equations to bypass the conversion bug.
Switch to WPS Office for Seamless Document Creation
If Microsoft Word's Equation Editor bugs and restricted feedback options are disrupting your academic or professional workflow, consider WPS Office. It acts as a highly compatible, lightweight alternative that simplifies formatting complex documents.
- 1. Install WPS Office: Download and install the free version of WPS Office from the official website.
- 2. Access the Equation Tool: Open WPS Writer, navigate to the 'Insert' tab on the ribbon, and click 'Equation' to launch the dedicated equation editor.
- 3. Build Your Formula: Use the visual symbols and structures to build your formula safely without encountering native Microsoft parser bugs.

Frequently Asked Questions
Why does Word's Equation Editor change my LaTeX commands?
Word's Equation Editor actively parses and translates LaTeX commands into its internal format (OfficeMath) when switching from Linear to Professional mode. Escaped underscores are sometimes incorrectly parsed and modified during this conversion due to software bugs in specific Microsoft update channels.
Can I use third-party Equation add-ins in Word to bypass this bug?
Yes, installing third-party equation editors or LaTeX add-ins like MathType or IguanaTex allows you to bypass the native Microsoft 365 Equation Editor entirely, preserving your exact LaTeX inputs without unwanted modifications.
How do I find my Microsoft Office update channel for the bug report?
Open Microsoft Word, click on 'File' in the top left corner, and select 'Account'. Your version number, build number, and specific Update Channel will be prominently listed on the right side under 'Product Information'.
What if the feedback button is completely missing in my Word application?
The feedback feature is frequently disabled by Group Policies in corporate or educational environments to restrict outbound data. In these cases, you must ask your IT administrator to submit a bug report to Microsoft via the Microsoft 365 Admin Center.




