Thanks,nYes I want to model a box of particles in order to simulate it in Fluent. A you see below, this particles I got from DEM therefore I have xyz for each particle and orientation in Excel sheet. I wrote a code in the script to model a master particle in order to copy it to new position. Due to huge number of particles I ask for a way or function to used excel sheet data as input. I hope you got my point!nRegardnElzubeirnnn