FreeEnds.dat. This file comprises information on the free ends. Since each break leads to two free ends, the number of lines is twice the number of lines in RWIntersectionBreaks.dat. No = the free end number; Fragm = the fragment number; Extr = the extremity (left = 0, right = 1); Chromo = chromosome number (0 to 45); RWIndex = the random walk monomer index; xVox, yVox and zVox = the spatial location of the voxel or monomer; Time = the creation time (s).