Having problems opening a box file?

Find out what programs can help open, view, play or convert your box files.

Opening box files
E-mail Mailbox

Did your computer fail to open a box file? We explain what box files are and recommend software that we know can open or convert your box files.

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What is box file?

Mailbox format used by various e-mail programs; stores collections of e-mail messages that can be opened individually; replaced by .MBOX and .DBX files in newer e-mail programs.

Software that will open, convert or fix box files

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