InfiniteLine Row (Geometry Section)
Contains the x and ycoordinates of two points on an infinite line.
An InfiniteLine row contains the following cells.
Cell  Description 

An xcoordinate of a point on the infinite line; paired with ycoordinate represented by the Y cell. 

A ycoordinate of a point on the infinite line; paired with xcoordinate represented by the X cell. 

An xcoordinate of a point on the infinite line; paired with ycoordinate represented by the B cell. 

A ycoordinate of a point on an infinite line; paired with xcoordinate represented by the A cell. 
Remarks
A geometry section that contains an Ellipse or InfiniteLine row should not contain any other rows.