Opening a THUMB0 File

The THUMB0 file type is primarily associated with XnViewMP.

THUMB0	File extension: THUMB0
	File type:	JPEG thumbnail image file

What is a THUMB0 file?

THUMB0 files mostly belong to XnViewMP.

Purpose: THUMB0 files are JPEG image thumbnails saved in the JFIF format. They hold a small preview version of a larger image and are used by programs such as XnViewMP to display quick previews without loading the full picture.
This file speeds up folder browsing and search by showing a low-resolution version of an image. It is not meant for editing or long-term storage but for efficient display. You can view it with any JPEG-compatible software. If needed, you can rename it with a .jpg extension to open it in standard image viewers.

Generates fast previews
Reduces load time
Automatically updated during image management

FilExt.com note: For more information, visit the XnViewMP website.

How do you open THUMB0 files?

You need a suitable software like XnViewMP to open a THUMB0 file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your THUMB0 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a THUMB0 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online THUMB0 Text Viewer

Choose your .thumb0 file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert THUMB0 files:

XnViewMP
See the previous paragraphs to learn more about the main application. THUMB0 files are often referred to as XnViewMP raster images because this type of file is primarily created or used by this software.
XnViewMP
A .THUMB0 file is a JPEG image thumbnail file, using the JFIF internal file format. These files are primarily generated by XnViewMP, an image viewer and organizer, to store small preview images of JPEG files for faster browsing and display. This file format is classified as Image.

THUMB0 format details:

The file format, which is the arrangement and type of data in a file, determines which program can open the file. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. If there are problems opening a file, you must first determine the file format used. Our examination of the THUMB0 files comes to the following conclusion:

THUMB0 is seldom used as a file extension and is mainly used by one program with a specific format.

100% of all THUMB0 files are based on the popular JFIF file format. JFIF is short for JPEG File Interchange Format. It is a bitmap graphic that uses JPEG compression. They consist of unreadable binary data. THUMB0 files are between 3 KB and 14 KB in size. The file type was created recently. Certain words are almost always found in the files, such as JFIF, (ICC_PROFILE, acsp, desc, gXYZ, mntrRGB XYZ and trXYZ.

You can get all the details of your THUMB0 file by dragging it onto this page or by clicking the button "Choose your .thumb0 file to analyze" above.

Technical Data for THUMB0 File Extension

File classification:

Raster Image

Related files:

jfif, thmb, tbn, thumb, thumb1, thumb2, thumb5, thumb6, thumb4, thumb3, thumb9, thumb7, thumb8, thumb17, nomedia, mp4, jpg, thumb-fd, jpeg

a thumb0 JPEG thumbnail image file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with THUMB0 files

Associate the THUMB0 file extension with the correct application.
Update your software that should actually open jpeg thumbnail image files. Because only the current version supports the latest THUMB0 file format. Search, therefore, e.g. on the manufacturer website after an available XnViewMP update.
To make sure that your THUMB0 file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .THUMB0 file online - secure, fast, and no downloads needed.