Short answer; Yes. But...
The last object in a .dx file is the object Import imports by default, thus
you get the series without problem. You can override this with the
default keyword (see Import Help). You can also specify the object name
you want Import to get from a file, so use 2 Imports,
Productarray is useful for generating a regular or semiregular mesh given
the values that would label the axes of such a mesh if you did a normal 2-d
plot. The implication is that you would have a list of 10 X's and 8 Y's
that you wanted to form a 10x8 mesh. But you appear to have 80 [X,Y]
points,