VBA & Macro Problems

How to Fix Excel VBA Editor Removing Characters and Showing False Syntax Errors on Mac

Adam DavisAdam Davis Oct 28, 2026 869 views

Question details

The user needs to fix a bug in the Excel for Mac VBA Editor where it incorrectly triggers syntax checks, removes characters, and marks valid code as errors.

Fix Excel VBA Editor Removing Characters and Showing False Errors on Mac
Product
Microsoft Excel
Device & OS
macOS
Scenario
Writing or editing VBA macros within the Excel for Mac Visual Basic Editor.
Observed behavior
The editor auto-checks syntax prematurely while typing, deletes characters or spaces, and highlights valid statements in red as syntax errors.
Before you start

Ensure you have saved your current workbook and copied any existing VBA code to a separate text file to prevent accidental code loss. Verify your macOS version and current Excel build number before proceeding.

Solution 1Recommended

Update Excel or Join the Office Beta Channel

Installing the latest update or joining the Beta Channel is the most reliable way to get the official fix for this macOS Excel bug.

Microsoft has acknowledged this bug and rolled out patches through their update channels. If the fix is not yet available in the standard monthly update, joining the Beta Channel gives you early access to the patched version.

1
Open Microsoft AutoUpdate

Launch Excel on your Mac. Click on 'Help' in the top menu bar, then select 'Check for Updates'.

2
Join the Beta Channel

In the AutoUpdate window, click on 'Advanced'. Look for the Update Channel dropdown and select 'Beta Channel' (or 'Office Insider').

3
Install Updates

Accept the terms if prompted, then click 'Check for Updates' again to download and install the latest Beta build containing the bug fix.

Update Excel or Join the Office Beta Channel
Update Successful: Once updated, restart your Mac and open the VBA Editor. The false syntax highlighting and character deletion issues should be resolved.
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Frequently Asked Questions

Why is my Excel VBA editor turning code red while I am still typing?

This is a known bug in certain versions of Excel for Mac where the background syntax checker triggers prematurely, highlighting incomplete code as erroneous before you have finished typing the line.

Can I disable syntax checking in Excel for Mac?

Yes, you can go to Excel > Preferences > VBA (or check the options inside the VBA Editor) and uncheck 'Auto Syntax Check'. This stops the popup alerts, though it may not completely resolve the character deletion bug in affected builds.

Does this VBA syntax error bug affect Excel for Windows?

No, this specific issue where the VBA editor deletes characters and falsely flags errors while typing has been predominantly reported on macOS builds of Excel.

Will my existing macros be corrupted by this bug?

The bug primarily affects the editor's live text input behavior and syntax highlighting. It does not corrupt the underlying workbook or previously saved macro code unless you accidentally save the file after the editor has deleted characters from your script.