ROOT TEAM

Save data You can save your data (and any C++ object) in a compressed binary form in a ROOT file. The object format is also saved in the same file: the ROOT files are self-descriptive. Even in the case the source files describing the data model are not available, the information contained in a ROOT file is be always readable. ROOT provides a data structure, the tree, that is extremely powerful for fast access of huge amounts of data - orders of magnitude faster than accessing a normal file... An open-source data analysis framework used by high energy physics and others.