How to Recover .SNM Files After Formatting Your USB Drive

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 .SNM file recovery guide for Windows, MacOS, Android and IOS in 2025.

How to Recover .SNM Files After Formatting Your USB Drive
Data Recovery Tool

What is a .SNM file?

Index of messages stored in a Netscape Messenger or Collabra mailbox, which are older email programs not commonly used anymore.

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

There can be several common causes of ".SNM" files being lost or experiencing failure. Some of the possible causes include:

  1. Accidental deletion: Users may accidentally delete ".SNM" files while organizing or cleaning up their computer's file system.
  2. Software or hardware issues: Problems with software applications or hardware components, such as crashes, power outages, or system errors, can lead to the loss or corruption of ".SNM" files.
  3. Virus or malware attack: Malicious software can infect and damage files on a computer, including ".SNM" files, leading to their loss or failure.
  4. File system errors: Issues with the computer's file system, such as disk errors or corruption, can result in the loss or corruption of ".SNM" files.
  5. Incompatible software or updates: Using incompatible software versions or applying updates that are not compatible with the ".SNM" file format can cause issues and lead to file loss or failure.
  6. Human error: Mistakes made by users, such as improper handling, accidental formatting, or improper shutdowns, can result in the loss or corruption of ".SNM" files.
  7. Storage media failure: If the storage device where ".SNM" files are stored, such as a hard drive or USB drive, fails or becomes damaged, the files can be lost or become inaccessible.
  8. Synchronization issues: When synchronizing ".SNM" files across multiple devices or platforms, errors can occur, resulting in file loss or failure.

It is important to regularly backup ".SNM" files and maintain a reliable data backup strategy to minimize the risk of losing important files.

How to recover lost ".SNM" 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 ".SNM" 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 ".SNM" file is always to create it once more.

Use programs for recovering ".SNM" 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 ".SNM" 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.

Partition Recovery™ 5.0
The tool recovers data from any devices, regardless of the cause of data loss.
Download

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 ".SNM" 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 ".SNM" extension?

Looking for how to open a stereo netscape Mail Index image file file?

Programs that open ".SNM" files

Windows
HEX Editor HEX Editor

Additional Information

  • File type: Netscape Mail Index

  • File extension: .SNM

  • Developer: N/A

  • Category: Misc Files

  • Format: N/A

Feedback

We will be happy to answer your questions!

Comments (1)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 18.12.2019 11:27 #
    Leave a comment if you have any questions about Recovering lost .SNM files after deleting, cleaning or formatting!
    Reply
Post comment
User
Leave a reply
Your email address will not be published. Required fields are marked *

  • Updated:
  • Evaluations:
  • 7
  • /
  • :
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.

Share

Questions and answers

  • What is the purpose of .SNM formats and what types of files can be saved in this format?

    The .SNM format is used for saving slide show presentations in the old versions of the Lotus Freelance Graphics software. Lotus Freelance Graphics was a presentation program that was popular in the 1990s.

    The .SNM format stores the slide show data including the layout, text, images, animations, and other visual elements. It was primarily used for creating and delivering presentations, similar to Microsoft PowerPoint.

    However, it's worth noting that the .SNM format is outdated and no longer widely used. Modern presentation software like PowerPoint, Google Slides, and Keynote have become more popular and support more advanced features.

  • Are .SNM formats compatible with all operating systems and software applications?

    No, .SNM formats are not compatible with all operating systems and software applications. .SNM files are typically associated with the Siemens Notation Machine software, which is specific to Siemens PLC programming. These files can only be opened and used within the Siemens Notation Machine software or other Siemens-related software. They cannot be opened or used with other operating systems or software applications unless they have specific support for .SNM files.

  • How can one convert or open .SNM files if the necessary software or program is not available?

    If you don't have the necessary software or program to open .SNM files, you can try the following methods:

    1. Use a Universal File Viewer: Universal file viewers like File Magic, Free File Viewer, or File Viewer Lite can open a wide range of file formats, including .SNM files. Install one of these viewers and try opening the .SNM file with it.
    2. Change the File Extension: Sometimes, .SNM files may actually be in a different format. Try changing the file extension to a more common format like .TXT, .DOC, .PDF, etc., and then attempt to open it with a text editor or an appropriate program for that format.
    3. Online File Conversion: There are numerous online file conversion services available. Upload the .SNM file to one of these websites and convert it to a more common format like .PDF, .DOC, or .TXT. Once converted, you can download and open it using the appropriate software.
    4. Contact the Sender: If you received the .SNM file from someone, reach out to them and ask for the file in a different format that you can open. Explain the issue you are facing and request an alternative format that is compatible with your available software.
    5. Search for Software: Conduct an online search to find software specifically designed to open .SNM files. There might be specialized programs or converters available that can handle this particular file format.
This website uses cookies to improve your experience. Description
Hello! This is AI-based Hetman Software virtual assistant, and it will answer any of your questions right away.
Start Chat