The JSON data keys are reordered based on the sequence provided by the user, allowing customization of the data structure to meet specific requirements. Users can select a subset of keys or choose to reorder all keys in the JSON data. Once reordered, this data can be directly converted into an Excel file for easy viewing and analysis.

To use this functionality, the user needs to input both the JSON data and a space-separated list of keys in the desired order. The system will then rearrange the keys in the JSON data to match the specified order, producing a reordered JSON output. This output can be saved or directly exported to Excel, making it simple to manage and visualize data in a structured format.