What is MSD? What Opens a MSD? File Format List from WhatIs.com

File Extension

MSD File Format

Encrypted file in mySecureDelivery service

MSD is a file extension for encrypted files in mySecureDelivery's system. Files, such as emails, attachments and other types of documents, are encrypted for viewing through the Secure Viewer application. 

Learn more about MSD files:

> The MySecureDelivery website offers more information and downloads.

This was last updated in February 2012
Editorial Director Margaret Rouse

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