1. A method of data management, comprising: (a) generating a first data string by comparing contents of a first modified data file against contents of an original data file and characterizing an output of such comparison using a given syntax that defines given data insertions, deletions and replacements; (b) generating a second data string by comparing the first data string against the contents of the original data file and characterizing an output of such comparison using the given syntax; and (c) generating a byte range index, the byte range index for use in reconstructing the contents of the first modified data file by referencing the contents of the original data file and the second data string.