How should you convert CSV files to delta format in Lakehouse?

To convert CSV files to Delta format in a Lakehouse, using the Load to Tables feature is the appropriate approach. This feature is specifically designed for loading external data sources, such as CSV files, into the Delta table format efficiently. When you load data using this feature, it will handle the conversion process, allowing the data to leverage the benefits of Delta Lake, such as ACID transactions, scalable metadata handling, and data versioning.

The other options do not address the conversion process directly. Creating a new shortcut, whether in the Tables section or the Files section, does not perform any data transformation or loading; it simply creates a reference point for easier access. Utilizing the Optimize feature is intended for improving the performance of existing Delta tables rather than converting or loading new data.