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

File Extension

BOX File Format

Lotus Notes file

BOX is a file extension for an email mailbox folder file format. BOX files are associated with Lotus Notes, Calypso Email and Foxmail; those applications can open BOX files.

A BOX file saves groups of email messages that can later be opened individually.

Some email programs have replaced the BOX file format with MBOX and DBX files.


Learn more about BOX files:

See research, news and expert advice on Lotus Notes mailbox management.

See, ask or answer questions about BOX files on ITKnowledge.com.

This was last updated in July 2010
Editorial Director Margaret Rouse

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