Batch Process Lines in Variable?

[tiffle]

When @noisneil opened up the question

Help Me Help My Missus - Two PDF Columns To Variables

My better half is a music publisher and has to add up hundreds of royalty statements from PDFs. There are two columns of interest: [CleanShot 2022-06-26 at 20.57.13] Until now, she's been doing it by hand with a calculator, but I've made a macro that will add up one column at a time. It would make her life a bit easier if I could do them both at once. If I select and copy the highlighted columns above, I get this:

Expand for data...

59 0.0053 67 0.0014 88 0.0024 135 0.0017 294 0.0105 740 0.0…

I very nearly piped up about using KM arrays with custom delimiters but then it got really complicated with CSVs, JSON, JavaScript... so it's nice to see the subject come up again but this time from the (busy) desk of @Nige_S