Data science projects start from importing data. With advancements in acquiring and storing large datasets, accessing the relevant parts of the data efficiently is more important than ever. Version 12 adds richer support for importing structured data into immediately computable data structures. Data import and export in the Wolfram Language can more effectively be used to perform statistical analysis or modeling and build classification, recommendation or prediction applications in a wide variety of domains such as finance, medicine, physical sciences and many more.