Test data
Where possible, put test data sets in the project's directory, either under each operation or in a separate data sets folder. This helps with portability and maintenance of your project.
A good practice when you are creating data in spreadsheets is to have the first column of your spreadsheet include the test case, name, or ID.
Remember that Lookup Test Data, Iterate Test Data and Fetch Test Data actions automatically map tags to data columns that have the same names. It helps to ensure that these match.