How to Fix Excel Files Not Displaying Thumbnails in Windows 11
Question details
The user wants to see image preview thumbnails for Excel workbooks instead of the default Excel application icon in Windows 11 File Explorer.

- Product
- Microsoft Excel
- Device & OS
- Windows 11
- Scenario
- Browsing Excel files in Windows File Explorer to visually identify workbook contents.
- Observed behavior
- Excel files display the standard application icon, while other document formats like Word, PowerPoint, and PDF successfully show preview thumbnails.
Before troubleshooting, ensure that your Windows 11 File Explorer view is set to display 'Large icons' or 'Extra large icons', as thumbnails cannot be generated in list or details view.
Enable Thumbnail Generation in Excel's Advanced Properties
Force Excel to generate and save a preview picture for all workbooks natively.
By default, Excel might not be configured to save a thumbnail image when you save a document. Enabling this property ensures that the file contains the preview data that Windows needs to render the thumbnail.
Open the problematic Excel workbook. Click on the 'File' tab in the top-left corner, and select 'Info' from the left sidebar.
On the right side of the Info screen, click the 'Properties' dropdown menu and select 'Advanced Properties'.
In the dialog box that appears, navigate to the 'Summary' tab. Check the box at the bottom that says 'Save Thumbnails for All Excel Documents'.
Click 'OK' to apply the settings. Save the workbook (Ctrl + S) to generate the new thumbnail, and check File Explorer to see if the preview now appears.

Adjust Windows Visual Effects and Folder Options
Ensure Windows is configured to display thumbnails globally rather than just icons.
Clear and Rebuild the Windows Thumbnail Cache
Corrupted cache files can prevent Windows from rendering newly generated thumbnails correctly.
Try WPS Office for Seamless Spreadsheet Management
If you continue experiencing display and configuration issues with Microsoft Excel, consider switching to WPS Office. It is a free, lightweight, and highly compatible alternative that makes managing your spreadsheets, formulas, and file previews effortless.
- 1. Download WPS Office: Visit the official WPS website and download the free WPS Office installer.
- 2. Install the Software: Run the installer and follow the quick setup instructions to install the suite on Windows 11.
- 3. Set as Default: Open WPS Spreadsheet and follow the prompt to set it as your default application for handling Excel file formats.

Frequently Asked Questions
Why do my Excel files only show the green icon instead of a preview?
This usually happens if Excel's 'Save Thumbnails' property is disabled within the application, or if Windows File Explorer is configured to 'Always show icons, never thumbnails' in its View options.
Does OneDrive affect Excel thumbnails in Windows 11?
Yes, files stored exclusively in the cloud using OneDrive's 'Files On-Demand' feature may not generate thumbnails locally. Right-click the Excel file and select 'Always keep on this device' to force a local download and generate a thumbnail preview.
Will clearing the thumbnail cache delete my Excel files?
No, clearing the thumbnail cache only deletes the temporary, low-resolution preview images generated by Windows. Your actual Excel workbooks and data remain completely safe. Windows will automatically recreate the thumbnails the next time you open the folder.




