Download the zip folder
unzip files in the folder
rename each file adding .cvs at the name already there
open your spread sheet program
open one of the downloaded files in the spreadsheet
the spread sheet will recognize the .cvs file type
.cvs is comma delimited
you will get a spread sheet with a a few lines about the files and two columns of data each 10000 rows
import both the A and B files into the spread sheet
set up your data so they start from the same row ( you can drag and drop)
in an adjacent column go to a cell at the same beginning row
in the cell put =d1-b1 to subtract the baseline amplitude from the amplitude with the pulse present
select this cell and all the others below it till the end of the rows with data and use the fill tool to put all the differences in all the cells
graph the difference column by selecting the column then go the chart and create the chart
do this for all the different z positions

Instructions for data analysis