I spoke with Adobe Support about this issue several months ago. This conversion flow is still inaccurate. Case in point: left-most item can be 1-5 lines. For multiple lines items, all lines but the first are attributes, preceded by a bullet point character. In some cases, this is converted to a single cell with multiple lines of text. In other cases, this is converted to multiple rows.
This inconsistency was discussed with Adobe, and persists as of this date. The Connector is not to be trusted.