Load last stored file

Hi, pls advise on how to load the last stored file with sequencer. I have tried the LoadFile command without sucess. The manual said if I leave the file name blank, the last stored file will be opened. I did so but a dialog window opened and asked me to choose which stored file to open instead. 
Thank you for helping out. 

Hi, 
If you want to load the last file it needs to be recorded recently.
attached you'll find a simple sequencer that goes to measure, starts storing, stops storing after 5 seconds while staying in measure mode until the user decides to exit and then loading the stored data file.

here is the missing sequence.