1. A system comprising: a processor; and a non-transitory computer-readable medium operably coupled to the processor, the computer-readable medium having instructions stored thereon that, when executed by the processor, cause the system to order an array of image data in a hierarchical z-order in the computer-readable medium; create data blocks from the array ordered based on the hierarchical z-order; create data files containing a predetermined number of successive data blocks from the created data blocks; create a directory structure in a file system of a computing device based on the hierarchical z-order, wherein each directory level of the directory structure is named using a hierarchical z-order address represented as a string; and store the created data files in the created directory structure based on the hierarchical z-order.