Is there a tool to examine raw metadata?

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Greetings,
Consider a 3 drive RAID5 where each drive has lost it's partitioning
info. Running mdadm -E does not find a superblock. But using hexedit
an mdadm superblock can be found in tact near the end of each drive.

Is there perhaps a tool I can point at the superblock to decode it? Or
trick mdadm into reporting the contents of the superblock?

I know I can look at the superblock format doc and translate it by
hand but I was hoping for an easier way.   Thanks for any help.  -V
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