Sorry for my delayed response and thanks for so many useful replies.

Thanks Corion for your hint. The file Pin_Values.txt actually has a csv format and the tool opens the file using soffice. I now realize that I missed to check if CSV file (Pin_Values.txt) is being processed correctly by soffice on two machines. This could possibly be the reason since the machines might have different soffice setup. I can confirm this by Tuesday as I am currently out and not having access to my system.

Hi haukex, thanks for your tips. Sorry for missing to go through process in pressure to resolve the error. To answer your query, I was referring to ('foo'=>3) vs. ('"foo"'=>3).

Thanks Eily for sharing useful info about Hash key behavior. This will definitely help me in future. However, I did not change any settings that way and therefore I now suspect soffice to be the issue here.