Browse Definitions:
File Extension

THM File Format

Thumbnail image file (Microsoft Clip Gallery v.1.x)

THM file format

THM is an image file format for thumbnails. Images are made smaller for browsing purposes, usually because it is easier to view and takes less time to load. THM files can be viewed by most image preview or editing programs on both Macs and PCs. THM files are similar to .JPEG files, and those .THM files representing image files can usually be converted to JPEG format by changing the name of the file from .THM to .JPEG or .JPG. THM files can also be used by videos. When extracting a video file from a camcorder, a thumbnail will be created to represent the video, usually taken from the video’s first frame. The .THM file will then have the same name as the .AVI file that it represents. With Canon-created video files, the .THM file also contains the metadata for the video, and therefore needs to remain with and have the same name as the .AVI file.

MIME: image/thm

Learn more about .THM files:

Search for answers to .THM-related questions on IT Knowledge Exchange.

This was last updated in July 2010
Browse File Extensions Alphabetically:

Ask a Question. Find an Answer.

Ask your peers a question about this file extension.

Ask a Question

Join the conversation

3 comments

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

Great helpful answer thanks. It tells me everything I need to know about .THM files. Honestly, the best answer I've every found to something like this that I've googled. Simply and clearly explained. Thanks again!
Cancel
Saw a bunch of .THM files as I was exporting the photos and videos from my wife's camera. These .THM files match all the videos, which are in .MOV format.
Cancel
Have often wondered what these extra files were next to my photos/videos. When trying to open was always pointed to the web by windows but nothing ever came back to open these files. Now trying to download from my windows phone to my windows computer I have come across the same problem. Your explanation has now cleared up the mystery (even though I see I will have to change the file extension to view these files). Will not bother as the photos/videos are there anyway.
Thanks for the explantion. Simple and to the point.
Cancel

-ADS BY GOOGLE

SearchCompliance

SearchSecurity

  • botnet

    A botnet is a collection of internet-connected devices, which may include PCs, servers, mobile devices and internet of things ...

  • Web application firewall (WAF)

    A Web application firewall (WAF) is a firewall that monitors, filters or blocks traffic to and from a Web application. WAFs are ...

  • MD5

    The MD5 hashing algorithm is a one-way cryptographic function that accepts a message of any length as input and returns as output...

SearchHealthIT

SearchDisasterRecovery

  • call tree

    A call tree -- sometimes referred to as a phone tree -- is a telecommunications chain for notifying specific individuals of an ...

  • mass notification system (MNS)

    A mass notification system is a platform that sends one-way messages to inform employees and the public of an emergency.

  • disaster recovery as a service (DRaaS)

    One approach to a strong disaster recovery plan is DRaaS, where companies offload data replication and restoration ...

SearchStorage

  • compact disc (CD)

    A compact disc is a portable storage medium that can be used for recording, storing and playing back audio, video and other data ...

  • secondary storage

    Secondary storage is used to protect inactive data written from a primary storage array to a nonvolatile tier of disk, flash or ...

  • VRAM (video ram)

    VRAM (video RAM) is a reference to any type of random access memory (RAM) used to store image data for a computer display.

SearchSolidStateStorage

  • SSD RAID (solid-state drive RAID)

    SSD RAID (solid-state drive RAID) is a methodology commonly used to protect data by distributing redundant data blocks across ...

  • Tier 0

    Tier 0 (tier zero) is a level of data storage that is faster, and perhaps more expensive, than any other level in the storage ...

  • PCIe SSD (PCIe solid-state drive)

    A PCIe SSD (PCIe solid-state drive) is a high-speed expansion card that attaches a computer to its peripherals.

SearchCloudStorage

  • RESTful API

    A RESTful application program interface breaks down a transaction to create a series of small modules, each of which addresses an...

  • cloud storage infrastructure

    Cloud storage infrastructure is the hardware and software framework that supports the computing requirements of a private or ...

  • Zadara VPSA and ZIOS

    Zadara Storage provides block, file or object storage with varying levels of compute and capacity through its ZIOS and VPSA ...

Close