SD card problems

I can not get my LCD panel to recognize any files I put on the SD card. I am trying a simple circle just to get the machine operating. Manual control from the LCD panel works fine.I am using an 8GB card with the following Gcode. I have tried it both as a text file and nc file.
(Project circle)
(Created by Estlcam version 10 build 11.017)
(Machining time about 00:00:40 hours)

(Required tools:)
(End mill 1/8)

G90
M03 S24000
G00 Z5.0000

(No. 1: Part 1)
G00 X16.8923 Y18.0678
G00 Z0.5000
G01 Z-1.0160 F0.4167 S24000
G03 X126.1493 Y45.8527 I46.6077 J45.4322 F0.8333
G03 X47.4584 Y126.5796 I-62.6493 J17.6473
G03 X16.8923 Y18.0678 I16.0416 J-63.0796
G01 Z-1.5240 F0.4167
G03 X126.1493 Y45.8527 I46.6077 J45.4322 F0.8333
G03 X47.4584 Y126.5796 I-62.6493 J17.6473
G03 X16.8923 Y18.0678 I16.0416 J-63.0796
G00 Z5.0000
G00 X0.0000 Y0.0000

M05
M30

Try .gcode

4th picture down.

https://www.v1engineering.com/estlcam-basics/