Looking to extract 12 different unique number values in a CSV file. What would be the ideal way to accomplish this task. TIA

If it's only 12 I would probably type them manually into a TestFilter or AttributeFilter. If you are using a recent version of FME, you can run the workspace with Feature Caching turned on, and then import values from the feature cache in the AttributeFilter.

Thanks ddbrocato for the suggestion. Worked great!