  A file repository for calculations of cross sections and kinematic
distributions using Monte Carlo generators for high-energy collisions is
discussed. The repository is used to facilitate effective preservation and
archiving of data from theoretical calculations, as well as for comparisons
with experimental data. The HepSim data library is publicly accessible and
includes a number of Monte Carlo event samples with Standard Model predictions
for current and future experiments. The HepSim project includes a software
package to automate the process of downloading and viewing online Monte Carlo
event samples. A data streaming over a network for end-user analysis is
discussed.
