How to Fix Slow VBA Typing and Incorrect Syntax in Excel for Mac
Question details
Users need a way to resolve typing delays and formatting glitches in the Mac VBA editor when working on cloud-stored workbooks.

- Product
- Microsoft Excel for Mac
- Device & OS
- macOS
- Scenario
- Writing or editing VBA macros in a workbook stored on OneDrive or SharePoint with AutoSave enabled.
- Observed behavior
- The VBA editor lags significantly, highlights code with incorrect colors, or shifts syntax around while typing. This often persists despite macOS upgrades or software reinstallations.
Before troubleshooting, ensure you have manually saved a local backup copy of your macro-enabled workbook (.xlsm) to prevent any code loss during testing.
Disable AutoSave for the Active Workbook
Turning off AutoSave prevents constant background synchronization to OneDrive or SharePoint, which is the primary cause of VBA editor interference.
The Excel for Mac VBA editor can struggle to process real-time syntax checking while AutoSave is simultaneously syncing the file to the cloud. Disabling this feature restores normal typing speed and syntax formatting.
Open your macro-enabled workbook in Excel for Mac and look at the top-left corner of the application window.
Click the 'AutoSave' toggle switch to change its status to 'Off'.
Press Option + F11 to open the VBA editor and resume typing your code to verify that the lag and syntax highlighting issues are resolved.

Work on a Local Copy of the File
Moving the file off cloud storage eliminates synchronization conflicts entirely, providing a stable environment for intensive VBA coding.
Update Microsoft Office and macOS
Ensuring your software is fully up to date can help mitigate known compatibility bugs between the Office VBA editor and recent macOS versions.
Try WPS Office for Seamless Spreadsheet and Macro Editing
If Microsoft Excel for Mac continues to disrupt your VBA coding with synchronization lag and syntax bugs, consider switching to WPS Office. It provides a lightweight, highly compatible environment for your spreadsheets with reliable support for VBA macros, free from intrusive background syncing issues.
- 1. Download WPS Office: Visit the official WPS website and download the Mac version of WPS Office.
- 2. Open Your Workbook: Launch WPS Spreadsheets and open your existing .xlsm files directly.
- 3. Edit Macros Smoothly: Access the Developer tab to edit and run your VBA code without typing delays.

Frequently Asked Questions
Why does AutoSave cause the VBA editor to lag on Mac?
AutoSave constantly synchronizes changes to OneDrive or SharePoint in the background. While the VBA editor attempts to process and colorize your code syntax in real-time, this background network activity interrupts the application, causing severe typing delays and scrambled text formatting.
Will disabling 'Auto Syntax Check' fix the typing lag?
No. Many users report that disabling 'Auto Syntax Check' in the VBA editor preferences does not resolve this specific issue. The root cause is tied to the file's active cloud synchronization rather than the editor's syntax validation feature.
Can reinstalling Excel or OneDrive fix the VBA formatting bug?
Reinstalling Office, OneDrive, or upgrading your macOS version rarely fixes this issue. It is a behavioral conflict between the Mac VBA editor and background cloud sync. Disabling AutoSave or moving the file to a local drive remains the most effective workaround.




