MSF File: What is it?

Reporter:   |   Last Updated: November 26, 2018

Microsoft Silver

MSF File Summary

Most MSF files can be viewed with four known software applications, typically Mozilla Thunderbird developed by Mozilla. It's main file type association is the Mail Summary File format, but also includes two other rarely-seen file types. The majority of MSF files are considered Uncommon Files, but they can also be Settings Files or Data Files.

Windows, Mac, and Linux operating systems can be used to view MSF files. Both desktop and mobile devices enable you to view and (sometimes) edit these files, depending on the software used. These files have a Popularity Rating of "Low", meaning they are not very commonly observed on your average hard disk.

If you would like to learn more about MSF files and the software that opens them, please see the additional detailed information below. Also, you can learn how to do some basic MSF file troubleshooting if you are having trouble opening these files.

Low
Demand
828
Position

/ 11690

Active

Mode

26

November

2018

Amended

Open MSF Files with FileViewPro

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Varieties of MSF Files

  3 known file types use this extension

Dominant MSF File Type

.MSF
File Name:.msf
File Type:Mail Summary File

MSF file is an index of mail messages stored in various e-mail programs' mailboxes. The file contains mail headers and summaries but not complete messages.

Developer: Mozilla
Division:Uncommon Files
Location: HKEY_CLASSES_ROOT\.msf

Software Programs That Open The Mail Summary File:


Mozilla Thunderbird by Mozilla

Windows
Mac
Linux

NetScape Mail by NetScape

Windows
Mac
Linux

Other MSF Descriptions

.MSF
File Name:.msf
File Type:Miranda IM Skin File

MSF file is also a custom skin for the Miranda IM instant messaging program.MSF file used to customize the interface of the program.

Developer: Miranda IM project
Division:Settings Files

Software Programs That Open Miranda IM Skin File Files:


Miranda IM by Miranda IM project

Compatible with:

Windows
.MSF
File Name:.msf
File Type:Blue Card Manager Merit Badge Mastersheet

MSF file is also a file created by Blue Card Manager.MSF file contains data of scouts in merit badge classes.MSF file enables badge counselors to track information about members.Blue Card Manager is a program used to manage Boy Scouts member information.

Developer: Scout Management Software
Division:Data Files

Software Programs That Open Blue Card Manager Merit Badge Mastersheet Files:


Blue Card Manager by Scout Management Software

Compatible with:

Windows

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MSF Demand


Device Breakdown

Desktop (84.34%)
Mobile (14.29%)
Tablet (1.37%)


Sources of MSF Problems


Frequent MSF Opening Issues

Mozilla Thunderbird Disappeared

When you double-click your MSF file, you may see a dialog box from your operating system stating that it "Cannot Open This File Type". Usually, this is because you do not have Mozilla Thunderbird for %%os%% installed. The OS won't know what to do with your MSF file, so double-clicking to load the file doesn't work.


Tip: When you have another program installed that you know will open your MSF, you can select it from the other programs listed (see "Show Apps").


Wrong Version of Mozilla Thunderbird is Installed

Your Mail Summary File file is incompatible with Mozilla Thunderbird because you might have the wrong version installed. Installing the latest version of Mozilla Thunderbird from Mozilla is recommended. The primary cause of this problem is that your Mail Summary File file was created by a different (newer) version of Mozilla Thunderbird than what's installed.


Tip: Investigate your MSF file by right-clicking and selecting "Properties" to find clues on what version you need.


Ultimately, most of the difficulties opening MSF files are due to having the wrong version of Mozilla Thunderbird installed.


Other Causes of MSF File Opening Problems

Although you might already have Mozilla Thunderbird or another MSF-associated software installed on your computer, you can still encounter problems opening Mail Summary File files. If you're still experiencing problems opening MSF files, there could be other computer problems. These issues include:

  • File references in the Windows Registry for MSF are wrong
  • Mistaken removal of the Windows registry MSF description
  • Defective install of a MSF program, such as Mozilla Thunderbird
  • Something has caused file corruption of your MSF
  • Your MSF has adversely impacted by malware
  • MSF-related hardware has device drivers that obsolete
  • Insufficient system resources to successfully open Mail Summary File files

Quiz: Which of the following is not a MIME type?









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