.MTH File Recovery

Have files been deleted due to a user’s error or software error? Have you formatted a disk by accident and need to know how to recover the files? Read our .MTH file recovery guide for Windows, MacOS, Android and IOS in 2024.

MTH File Recovery

What is a .MTH file?

Includes functions and values that can be loaded by Derive, "the mathematical assistant for your PC"

What Are Common Causes of ".MTH" Files Lost or Failure?

There are several common causes for ".MTH" files to be lost or fail:

  1. Accidental deletion: Users may accidentally delete ".MTH" files while organizing or cleaning up their computer, resulting in their loss.
  2. File system errors: File system errors, such as corruption or damage, can cause ".MTH" files to become inaccessible or fail to open.
  3. Software or hardware issues: Problems with software applications or hardware components can lead to ".MTH" file failures. This can include issues like software crashes, system errors, or hardware malfunctions.
  4. Virus or malware infections: Viruses or malware can infect and corrupt ".MTH" files, making them unusable or causing them to be deleted.
  5. Power outages or system shutdowns: Unexpected power outages or improper system shutdowns can interrupt the saving or opening process of ".MTH" files, resulting in data loss or file corruption.
  6. Incompatible software or file format: If the software used to open ".MTH" files is outdated or incompatible, it may fail to open or display the contents correctly.
  7. Storage media failure: If the storage device where ".MTH" files are stored, such as a hard drive or USB drive, fails or becomes damaged, the files can be lost or become inaccessible.
  8. Human error: Human mistakes, such as accidentally formatting a storage device or overwriting ".MTH" files with incorrect data, can lead to file loss or failure.

It is important to regularly back up ".MTH" files and use reliable antivirus software to minimize the risk of data loss or file failure.

How to recover lost ".MTH" files?

Sometimes while working with a computer, laptop or other stationary or mobile devices, you may encounter various bugs, freezes, hardware or software failures, even in spite of regular updates and junk cleaning. As a result, an important ".MTH" file may be deleted.

Go to view
🧺 How to Recover Files and Folders After Sending Them to the Recycle Bin and Deleting? (Windows 11)

🧺 How to Recover Files and Folders After Sending Them to the Recycle Bin and Deleting? (Windows 11)

By no means should you think that the only way to recover a ".MTH" file is always to create it once more.

Use programs for recovering ".MTH" files if a file was lost after accidental or deliberate deleting, formatting the memory card or the internal storage, cleaning the storage device, after a virus attack or a system failure.

Programs to recover ".MTH" files

Looking for a way to get files back? In cases when files were deleted and they cannot be restored by using standard operating system tools, use Hetman Partition Recovery.

The tool recovers data from any devices, regardless of the cause of data loss.

Follow the directions below:

  1. Download Hetman Partition Recovery, install and start the program.

  2. The program will automatically scan the computer and display all hard disks and removable drives connected to it, as well as physical and local disks.

    File Recovery Software
  3. Double-click on the disk from which you need to recover ".MTH" files, and select analysis type.

    Hetman Partition Recovery - Analysis Type
  4. When the scanning is over, you will be shown the files for recovery.

    Hetman Partition Recovery - Files that Can be Restored
  5. To find a file you need, use the program’s interface to open the folder it was deleted from, or go to the folder "Content-Aware Analysis" and select the required file type.

    Hetman Partition Recovery - Deep Scan
  6. Select the files you have been looking for and click "Recovery".

    File Recovery Software - Files List for Recovery
  7. Choose one of the methods for saving the files and recover them.

    Saving recovered files in Hetman Partition Recovery

How to open file with ".MTH" extension?

Looking for how to open a stereo derive Math File image file file?

Programs that open ".MTH" files

HEX Editor HEX Editor

Additional Information

  • File type: Derive Math File

  • File extension: .MTH

  • Developer: N/A

  • Category: Data Files

  • Format: N/A


We will be happy to answer your questions!

Comments (1)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 18.12.2019 13:54 #
    Leave a comment if you have any questions about Recovering lost .MTH files after deleting, cleaning or formatting!
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Vladimir Artiukh

Author: Vladimir Artiukh, Technical Writer

Vladimir Artiukh is a technical writer for Hetman Software, as well as the voice and face of their English-speaking YouTube channel, Hetman Software: Data Recovery for Windows. He handles tutorials, how-tos, and detailed reviews on how the company’s tools work with all kinds of data storage devices.

Oleg Afonin

Editor: Oleg Afonin, Technical Writer

Oleg Afonin is an expert in mobile forensics, data recovery and computer systems. He often attends large data security conferences, and writes several blogs for such resources as xaker.ru, Elcomsoft and Habr. In addition to his online activities, Oleg’s articles are also published in professional magazines. Also, Oleg Afonin is the co-author of a well-known book, Mobile Forensics - Advanced Investigative Strategies.


Questions and answers

  • What is ".MTH repair" and what does it involve?

    ".MTH repair" refers to the process of repairing files with the .MTH file extension. The .MTH file format is commonly associated with Microsoft Project, a project management software. These files contain project data, including tasks, resources, and scheduling information.

    .MTH repair typically involves fixing corrupted or damaged .MTH files that cannot be opened or accessed properly. This can be done using various methods, such as:

    1. Utilizing built-in repair tools: Microsoft Project provides built-in repair options that can attempt to fix issues with .MTH files. These tools can be accessed through the software's interface and may help resolve minor problems.
    2. Using third-party file repair software: There are specialized software programs available that focus on repairing corrupted .MTH files. These tools employ advanced algorithms to analyze and fix the file structure, allowing for successful recovery.
    3. Manual troubleshooting: In some cases, manual troubleshooting techniques may be required. This can involve extracting data from the damaged .MTH file, recreating the file structure, or using project recovery techniques provided by Microsoft Project.

    It's important to note that the exact steps involved in .MTH repair may vary depending on the specific issue and the tools being used. It is recommended to create backups of important .MTH files before attempting any repairs to avoid further data loss.

  • Are there any specific tools or software required for performing a ".MTH repair"?

    There is no specific tool or software called ".MTH repair" that is widely known or recognized. It is possible that you may be referring to a specific file format or extension, but without more information, it is difficult to provide a specific answer. If you can provide more details about the file or the issue you are facing, I may be able to assist you further.

  • How common are issues that require ".MTH repair" and what are some common symptoms that indicate the need for this type of repair?

    The term ".MTH repair" does not have a widely recognized meaning in the context of common issues or repairs. It is possible that it refers to a specific type of repair related to a particular device or system, but without further information, it is difficult to provide specific details.

    To address the question more generally, the commonality of issues requiring repair can vary depending on the type of device or system being considered. Some common symptoms that indicate the need for repair in various contexts include:

    1. Software or application errors: Frequent crashes, freezing, or unresponsiveness can indicate issues with the software that may require repair or reinstallation.
    2. Hardware malfunctions: Physical damage, strange noises, overheating, or failure to power on are common symptoms that suggest hardware issues requiring repair.
    3. Connectivity problems: Inability to connect to Wi-Fi networks, Bluetooth devices, or other networks can indicate issues with network adapters or drivers that may need repair.
    4. Slow performance: Sluggishness, delays, or a significant decrease in performance can be caused by various factors, such as insufficient memory, malware infections, or software conflicts, which may require repair.
    5. Data loss or corruption: If files become inaccessible, corrupted, or lost, it may indicate issues with storage devices, file systems, or data recovery, requiring repair.

    It is important to note that the above symptoms are general indicators and not specific to ".MTH repair." To address any specific repair needs, it is recommended to consult with a professional or contact the manufacturer or service provider for further assistance.

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