This basically relates to Batch processing. A step in the batch process involves an exploration, results of which are exported to csv file. This file I intend to use as an import file for another database. Now by default it can export to a .csv but instead I want an extension say .xyz. Here xyz is a format type. Since this is an intermediate step, it’s essential as an automatic process.
As for normal excel, it allows you to save in a different extension even though the file type remains as csv