Hi VCUBME,
LabVIEW is shipping with some good examples that show how to store your data effectively using binary files or datalog files. Please try the "Write Binary File.vi" with the "Read Binary File.vi" for an exaple of storing simple arrays. If you need to store more complex data as for example clusters, then refer to the "Write Datalog File Example.vi" and "Read Datalog File Example.vi".
Have fun!
- Philip Courtois, Thinkbot Solutions