how can I open a .dta file on my McBook Air

From

http://www.file-extensions.org/dta-file-extension

"

The DTA file extension is often used for data files. It can be in plain text format as well as binary format. It can be found in many programs, but unless it is same developer, the formats are completely different. In most cases, *.dta files are only used for internal purposes and are not meant to be a data exchange format."

So, one naturally asks: How did this file get created?