can i open an old backup file to find a lost phone number?

Anmeldedatum: 23.08.2013 Beiträge: 1

for the past few years one phone has no bells and whistles but has been especially great / robust / verstile for the work i do
i have had 3 of these phones over past 3 years and before i changed pc backed up phone to new phone fine

but now i have lost a number and would like to look through other backups without messing up my phone with duplicates etc
is there any way to open and read mpb files in phone explorer without connecting my current phone

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