AWS Glue DataBrew extends its datasets to support files without an explicit file extension or a header row

AWS Glue DataBrew extends its datasets to support files without an explicit file extension or a header row. Often times, extensionless files are tricky to work with and require visually exploring the data to understand it. Similarly, customers often work with files without an explicit row that defines the header in the file. In both of these cases, you can now define both these configurations when you create a dataset in DataBrew.

Source:: Amazon AWS