PartnTbl analysis via sprdSht?

PartnTbl analysis is a dog of a task!
You need to have access/sight of a lot of related 'variables';
like the <reverse written 4byte> translation to decimal
<start-sector> & <sector-length/count>.

It occured to me that spreadsheets do exactly that: show how
several related variables 'track'.

It's been some time since I used a sprdSht, and the first obvious
problem is converting hex-to-decimal. I looked into `cs`, but
couldn't see how to do hex-to-decimal. Recently I wrote a
`bc` script which converts the 4 reverse-ordered-bytes to
decimal; and perhaps `cs` can call that.

It shouldn't be too difficult to restore the PartnTbl of the Nth
[linked-chain] extended partition; especially if the previous
`cfdisk` sizes are available. I see that the number of sectors
readable by `dd` differs by 63 with the `cfdisk` sizes.

But before I open a new canOworms, can other users possibly
share their related experience/advice.

==TIA