With special utilities such as the phoneMiner or ABC BlackBerry Converter, users may be able to xtract and recover the contents from BlackBerry .bbb backup files. Some data like contacts can be then exported and saved in spreadsheet format, for example MS Excel spreadsheet (.xls).
Convert BlackBerry backup (post 2012) file to Microsoft Excel 97 to 2003 workbook.
We found 2 software records in the database related to .bbb to .xls file format conversion.
Microsoft Windows software - convert bbb to xls on Windows
A backup and recovery software for smartphones
Convert from bbb file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned bbb to xls. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A conversion utility for BlackBerry backups