I have a Google sheet that has multiple spreadsheets, let's say Sheet1, Sheet2 and Sheet3. In all of those spreadsheets, column H is a particular field of which I want all the values with blanks filtered out.
I'm not sure where to begin with this, I've tried unioning all the columns into one in another sheet and then filtering all of them but can't get the union to work.
End result would ideally be a single list of all the values from Sheet1.colH, Sheet2.colH, and Sheet3.colH.