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.QBMB File Extension

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File TypeQuickBooks Backup File

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CategoryBackup Files


This file is saved in a binary format, which requires a specific program to read its contents.


Company backup data file created by Mac versions of QuickBooks small business accounting software; contains the backup copy of a company data file, which may have a .QB2012, .QB2011, etc. extension; used for restoring a recent copy of the original data file in the event it becomes corrupted.

More Information

To restore a QBMB file to a company data file, you can rename its extension to the extension of the original data file. For example, if the QBMB file is a backup of a QB2012 file, you can rename its extension to ".qb2012" to restore the company information.

Programs that open QBMB files
Intuit QuickBooks Pro 2015
Intuit QuickBooks for Mac 2015
Updated 11/15/2011