Amazing Windows tool for Configuring Explorer Preview Handlers

Опубликовано: 18 Март 2026
на канале: AUTOHOTKEY Gurus
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I really like to "peek" inside my files without opening them. But sadly Windows doesn't make this easy so I asked TJ from RPA Mania to develop the script for me. TJ did a great job and this tool makes it super-simple to change which Preview Handler is used for opening your files

If you're interested in getting custom Automation work done for you, I highly recommend you reach out to TJ at [email protected]. You can get the script he created here: https://the-Automator.com/PreviewHand...
Summary:
In this video, Joe and his guest TJ discuss a new tool that enhances file preview capabilities in Windows Explorer through the use of preview handlers. They demonstrate how the tool works, its features, and the benefits of using it for quick file previews without needing to open large applications. The conversation also touches on the importance of having the right preview handlers installed and the potential for customization based on user needs.

Key Points:

[00:00:00] Introduction
Joe introduces himself and his guest, TJ.
They discuss a project aimed at improving file previews in Windows Explorer.

[00:00:40] Overview of Preview Handlers
TJ explains what preview handlers are and their function in Windows Explorer.
They allow users to see file previews based on file types without opening them.

[00:01:20] Benefits of Preview Handlers
Joe highlights the convenience of previewing large files without launching applications like Word or Excel.
Quick access to file content can save time.

[00:02:00] Demonstration of the Tool
TJ demonstrates the tool in an Explorer window with various file types.
He explains how to enable the preview pane in Windows Explorer.

[00:02:40] Setting Up Preview Handlers
Users need to have the appropriate preview handlers installed for different file types.
Not all file types come with default preview handlers.

[00:03:20] Customization of Preview Handlers
The tool allows users to set specific preview handlers for different file types.
Users can select and change the handler for a file extension.

[00:04:00] Preview Handler Functionality
TJ shows how to preview different file types, including text and binary formats.
The tool supports various formats, including Microsoft documents.

[00:04:40] Changing Preview Handlers
Users can replace the current preview handler with one of their choosing.
A message confirms the change, and users must refresh Explorer to see the update.

[00:05:20] Limitations of HTML Previews
HTML files display text but may not show images due to Windows limitations.
Users need to open HTML files for full content visibility.

[00:06:00] User Experience with Preview Handlers
Joe and TJ discuss how different computers may have different available preview handlers based on installed software.
They emphasize the variability in user experiences.

[00:06:40] Animated GIFs and Preview Handlers
Joe mentions the unexpected behavior of animated GIFs in the preview pane.
They discuss the differences in handling between various preview handlers.

[00:07:20] Tool Availability and Contact Information
Joe mentions that the tool is free and will be hosted on his platform.
Viewers can find contact information for TJ and details about the tool in the video description.

[00:08:00] RPA and Automation Discussion
TJ shares his background in robotic process automation (RPA) and how it relates to the tool.
They discuss the benefits of using AutoHotKey for automation tasks.

[00:08:40] Licensing and Costs of Automation Tools
They touch on the costs associated with professional automation tools like UiPath.
Joe mentions the balance between cost and efficiency for businesses.

[00:09:20] Conclusion and Call to Action
Joe encourages viewers to reach out with questions and to like or subscribe to the channel.
They thank viewers for watching and express excitement about the tool's potential.

Final Summary:
The video presents a new tool that enhances file preview capabilities in Windows Explorer through customizable preview handlers. Joe and TJ explain how the tool works, demonstrate its features, and discuss the importance of having the right handlers installed. They also touch on the broader context of automation and the costs associated with professional tools, concluding with an invitation for viewer engagement.