The Next button is not enabled during the importation
MiningMath has mandatory variables (columns) to be assigned to the proper Field Type:
Indexes (IX, IY, IZ) or coordinates (X, Y, Z).
Economic Values (at least two).
Typically, MiningMath recognizes some columns automatically when their headers are similar to the Field Type name. Otherwise, the MiningMath will automatically assign them to the Field Type sum.
To enable the Next button, the user needs to assign each one of the mandatory variables to their respective Field Type.
Figure 1 shows, in green, a Field Type correctly assigned for the column IY.
In red, the grade columns are assigned to the Field Type Other instead of Average. Consequently, the Next button is disabled.
Figure 1: Variables and Field Types.