This document describes a system called EverTrieve for catalogued, tamper-proof storage of large data files from flow cytometry experiments. The system involves using CytoGenie software to design experiments and label data, FACS Curator to bundle collected data with experiment protocols, and EverTrieve to catalog and archive the bundled data on a secure server. Researchers can then search the catalog to access their archived data and metadata from experiments conducted weeks or years ago.