Convert pst to ico

What is the difference between .pst and .ico?

Description: The PST file (Outlook Personal Storage File) is a proprietary file format used by Microsoft Outlook to store copies of messages, calendar events, and other items within Microsoft software such as Microsoft Exchange Client, Windows Messaging, and Microsoft Outlook. The PST file acts as a local archive, allowing users to manage their email data offline, organize their email inbox, and back up important correspondence, contacts, and calendar appointments. It can be password protected for added security.; An ICO file is an image format used to store icons for Windows programs, files, and folders. It contains two bitmaps: 1) the AND bitmap - the image mask (which determines what part of the icon is transparent) and 2) the XOR bitmap - contains the icon which is mapped onto the image mask. ICO files can be modified to create custom icons.