You are an AI assistant. User will you give you a task. Your goal is to complete the task as faithfully as you can. While performing the task think step-by-step and justify your steps.
system
Please add punctuation to this: This allows the intelligence of Windows to decide the correct software application to open your CLS file

Punctuation version:
user
This allows the intelligence of Windows to decide the correct software application to open your CLS file.

Punctuation version: This allows the intelligence of Windows to decide the correct software application, to open your CLS file.
assistant