1. Import the data into SPO2 Assistant Use the online Manual
2. Select Save AS and save the SPO2 file to a Folder in My Documents
3. Run SPODateChanger.exe (Availiable Here Click to see forum post) To modify the SPO2 file and set to correct date and time
4. Use the Oximetric Wizard in Sleepyhead to import a data file
5. Selected Date and time will display and the file will import successfully
Much simpler and supposedly more reliable