There is only one file type that uses the .NAMES extension:
Data Set Description File
A NAMES file is a plain text file that contains a description of a database file with a .data file extension. It is similar to a .MANIFEST file used to store metadata about the contents packaged in a Windows application. NAMES files include various metadata, such as who collected the data, where the data was collected, past usage, citation requests, and attribute information.
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Updated: October 6, 2019