Importing data — A second header row (2)

The test is narrow on purpose. Row 2 counts as a header only where the rows under it hold numbers or dates and row 2 holds a label in their place. A sheet that is all text gives no such evidence, so its second row is imported like any other row. What was decided is written under the file in the upload list and again on the table's card in the review step, each with a button that reverses it: Import it as a row, or Use row 1 instead. Pressing it on the review step reads the files again and repeats the analysis, so changes you had made to the plan are lost. Two columns with the same name are told apart as “Date” and “Date (2)”, so both are imported.