Which tool would be used to format the output from ID Column A and Column B into A, B, A1, B1?

The Join tool is used to combine data from two sources based on a common field or identifier. In this case, if you need to format outputfrom ID Column A and Column B into a specific structure like A, B, A1, B1, the Join tool would allow you to merge these columns effectively based on their matching attributes. It can assist in organizing data so that you have a unified and structured output that adheres to the specified format.

Using the Join tool, you would configure it to take input from Column A and Column B, align them, and produce the desired formatted results. This would allow for more precise control over how the columns are combined and presented. Other tools have specific use cases that do not directly address the requirement of reformatting and combining data from multiple columns in this manner.