This article provides detailed solution steps for Windows users encountering Blender file preview issues.

Windows System Solution

If you are using a Windows system but cannot preview Blender (.blend) files or thumbnails are not displaying, you can follow these steps to fix the issue:

Locate the BlendThumb.dll file: Open the Blender installation directory and find the BlendThumb.dll file
Copy the BlendThumb.dll file: Copy this file to the C:\Windows\System32\ folder
Run Command Prompt as administrator: Click the Win button to search, type CMD, right-click on "Command Prompt", and select "Run as administrator"
Execute the registration command: Enter the command regsvr32.exe C:\Windows\System32\BlendThumb.dll and press Enter
Confirm successful registration: The system will display a success window, indicating that the configuration is complete
Refresh thumbnails: Return to Eagle, right-click on the Blender file with improperly displayed thumbnails, select "More" → "Refresh Thumbnail", and the thumbnail should now display correctly

Important Notes

Ensure that you have Blender software installed, otherwise you may not find the required BlendThumb.dll file
Administrator privileges are required when executing the registration command

How to Fix Blender File Preview Issues or Missing Thumbnails