I am creating files using the "Write File" task type. The file starts with 3 characters that I am not putting there. They are:

In hex, these are:
efbbbf
This happens with every file that I create.
I am currently running version 5.1.6. We are an enterprise license customer, and I am not in a hurry to upgrade this server since it is one of our most important ones, but, if you advise me that this should fix the solution I will be plan on upgrading it.
Thanks,
Chris