[Paraview] Problem loading CSV data files

[lester anderson]

Hello
Each time I try to load a CSV file - something simple like a standard topography file (Longitude, Latitude, Elevation) as decimal values, it gives a window error message:
Cannot set up lookup table, no X array
Failed to locate the data to plot on either axes
This is a small snippet of the data - topo1.csv
"Long","Lat","Elevation"
0.008333333333,13.54166667,-4134
0.025,13.54166667,-4174
0.04166666667,13.54166667,-4224
0.05833333333,13.54166667,-4270
0.075,13.54166667,-4298
0.09166666667,13.54166667,-4290
0.1083333333,13.54166667,-4234
0.125,13.54166667,-4126
0.1416666667,13.54166667,-3978
0.1583333333,13.54166667,-3812
0.175,13.54166667,-3658
0.1916666667,13.54166667,-3540
0.2083333333,13.54166667,-3480
0.225,13.54166667,-3472
0.2416666667,13.54166667,-3506
0.2583333333,13.54166667,-3562
0.275,13.54166667,-3600
0.2916666667,13.54166667,-3628
0.3083333333,13.54166667,-3620
The information tab gives the following info:
Filename: topo1.csv
Type: Rectilinear Grid
Number of cells: 731700
Number of points: 731701
Memory: 3.03e+01 MB
Data Arrays
Name      Data Type  Data Ranges
Long   Double     [0.00833333, 14.9917]
Lat       Double     [0.00833333, 13.5417]
Elevation Double     [-7838, -230]
Bounds
X range: 0.000 to 731700.000 (delta:713700.000)
Y range: 0.000 to 0.000 (delta: 0.000)
Z range: 0.000 to 0.000 (delta: 0.000)
Am I missing something here with regards to CSV data files are concerned?
Thanks for any help
Lester