It supports any number of fields and transforms them to this format:

L1: x y z var1 var2 var3_x var3_y var3_z ...
L2: x y z var1 var2 var3_x var3_y var3_z ...
.
.
.
Ln: x y z var1 var2 var3_x var3_y var3_z ...

where n is the cell number, and var1(p), var2(T) var3(U)are the input variables:

foam2Columns -fields "(p T)"

Yes, it supports volVectorField:

foam2Columns -vectorFields "(U)"

Or together:

foam2Columns -fields "(p T)" -vectorFields "(U)"

Thanks for ZmengXu. With his help, it supports lagrangian fields:

foam2Columns -lagrangianFields "(d T)"

Or together:

foam2Columns -fields "(p T)" -vectorFields "(U)" -lagrangianFields "(d T)"

The results are save in $FOAM_CASE/postProcessing/foam2Columns/$time/Eulerian_*, and $FOAM_CASE/postProcessing/foam2Columns/$time/Lagrangian_* for lagrangian fields.