How to Fix Random Black Boxes in Macro-Enabled Excel Workbooks
Question details
Users encounter random black boxes appearing over their worksheets when working with macro-enabled Excel files.
- Product
- Microsoft Excel
- Device & OS
- not provided
- Scenario
- Viewing, editing, or running macros in complex .xlsm workbooks with multiple tabs.
- Observed behavior
- Random black boxes sporadically render across the Excel worksheets, obscuring data and interfering with normal operations.
Before troubleshooting, save your current work and verify if the black boxes appear in all Excel files or only in specific macro-enabled (.xlsm) workbooks.
Test Excel in Safe Mode and Disable Conflicting Add-ins
Running Excel in Safe Mode bypasses add-ins and startup programs, helping you identify if a third-party plugin is causing the display issues.
Since the black boxes appear sporadically, testing in Safe Mode ensures a clean environment. If the issue stops in Safe Mode, an active add-in is likely responsible for the rendering glitch.
Press the Windows key + R to open the Run dialog box. Type 'excel /safe' and press Enter to launch Microsoft Excel in Safe Mode.
Click on 'File' in the top-left corner, select 'Options' at the bottom, and then click on 'Add-ins' in the left-hand pane.
At the bottom of the window next to 'Manage', select 'COM Add-ins' from the dropdown and click 'Go'. Uncheck all boxes in the list and click 'OK'.
Close Excel and reopen it normally. Open your macro-enabled workbook to see if the random black boxes still appear.
Perform an Online Repair of Microsoft Office
Running an Online Repair fixes corrupted application files and restores underlying registry settings that may be causing rendering failures.
Update Office and Graphics Drivers
Outdated software or display drivers frequently cause graphical glitches, including random black boxes, in hardware-accelerated applications like Excel.
Experience Glitch-Free Spreadsheets with WPS Office
If Microsoft Excel continues to display random black boxes or suffers from rendering errors, consider switching to WPS Office. It provides a lightweight, highly compatible, and stable environment for handling complex spreadsheets without display glitches.
- 1. Download and Install: Visit the official WPS website to download the free installer and follow the on-screen instructions.
- 2. Open Your Workbooks: Launch WPS Spreadsheet and easily open your existing .xlsm files without losing any formatting or data.
Frequently Asked Questions
Why do black boxes randomly appear in my Excel worksheets?
This is typically caused by a rendering conflict. It can be triggered by outdated graphics drivers, hardware acceleration issues, corrupted third-party add-ins, or damage within the Office installation files.
Can I test my macro-enabled (.xlsm) workbooks in Excel for the Web to avoid this issue?
No, Excel for the Web does not support VBA macros. While you can view the data, the macros will not run, making it unsuitable for fully testing the functionality of your .xlsm files.
Will running an Online Repair delete my Excel files?
No. The Online Repair tool only fixes the core Microsoft Office application files, registry entries, and shortcuts. Your personal workbooks, data, and macros will remain completely intact.
What should I do if the issue only happens in one specific workbook?
If the problem is isolated to a single file, the workbook itself may be corrupted. Try copying the data and macros into a newly created workbook to see if the rendering issues persist.
