CEUDOFFICE'S PROFILE

Hi!

I'm a newbie and I'm stuck with my project. Please someone could help me with this problem below:

I'm using ingame variables to count some of the players actions. And I want to write this ingame variable to a .txt file (using a script or a plugin or anything).
I can write any text in to a .txt file, but I can't seem to find a way to put variables in it.

Thank you for your help in advance!