MTX
http://edamontology.org/format_3916
The Matrix Market matrix (MTX) format stores numerical or pattern matrices in a dense (array format) or sparse (coordinate format) representation.
Term info
Created in
1.23
Documentation
https://reference.wolfram.com/language/ref/format/MTX.html
Example
https://reference.wolfram.com/language/ref/format/MTX.html
File extension
mtx
Organisation
https://www.nist.gov/