Format of the data is listed as Arc&#x2F;Info ASCII Grid (AAIGrid) which is an ASCII Esri grid <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Esri_grid" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Esri_grid</a>.