Open EEGLAB in MatLab (type “eeglab” in MatLab and hit enter)

In EEGLAB, go to “file” -> “import” -> “using EEGLAB functions and plugins” -> “import Phillips .mff file”

Select the mff file of the ECG recording you want to import

For trigger/event type select “code”

Go to “plot” -> “channel data (scroll)” and check to see what channel number corresponds to the ECG channel (usually channel 66). You should be looking for a QRS wave signal

Go to “edit” -> “select data” and enter the ECG channel number into “channel range”

Save the new data set

Confirm the right channels were removed by navigating to “plot” -> “channel data (scroll)”

Then go to “file” -> “export” -> “data and ica activity to text file”

Make sure the only boxes checked are “transpose matrix (elec -> cols)” and “use comma separator (csv) instead of tabs”. All other boxes should be unchecked.

Enter the file name with a proper title (should end in .txt) and select the proper folder destination

Wait until the file is finished uploading before closing MatLab