Organizing your files is generally based on personal preference, but having a specific folder named "Scripts" can help keep your script files easily accessible. Save your script in the Script folder using a filename relevant to the show you are scripting, such as "July 4th 2019.csv" or "Sampson Wedding.csv." This naming convention will allow you to keep your script files appropriately named and better organized.
Using firmware version 5.1 or higher, the filename can include the show name or any custom filename you desire up to 45 characters including the .csv extension.
If using firmware version 5.0 or older you will need to make sure to rename the file 'cobra.csv' before attempting to load the script file onto your 18R2 controller.