I am trying to figure out how I can draw my 3D surface plot using pgfplots when external data is scattered to an excel file in 2D with no headers. I wasted almost 2 days now and have no clue how can I achieve this.
The visualization of the data with 3D surface plot in LABVIEW is given below. I also added how the excel file looks like and gave tab delimited txt file below.
Thanks in advance.

