To make this as simple as possible please watch the video here so that any errors can be avoided. It shows a live file prep and uploading of a time-series recording (ECG-derived interbeat intervals—IBIs). Proper data prep of the CSV file is quite simple—but VITAL! An error of omission will render your results fatally flawed.
Please be certain any grad student or researcher associated with your project that accesses this site spends a few short minutes to watch this video.