Hi @jharrity
It's not beautiful by any means, but it's waaay quicker than loop and works (tested) 😅:
1) 'Launch Excel' and choose your file
2) 'Get window' > foreground window (gives %AutomationWindow% as output variable)
3) 'Focus window' > Find window mode = By window instance/handle, Window instance = %AutomationWindow%
(Steps 2-3 are to assure PAD is with Excel window active and focused)
4) 'Write to Excel worksheet' > write in cell D1 (as you said your ws has only columns A and B filled) the value to be find in Column A
5) 'Send keys' > {Down}, {F2}
6) 'Send keys' > =VLOOKUP(D1,$A:$B,2,0) {Enter}
7) 'Read from Excel worksheet > get value in D2 cell