１行目は、各列に格納されているデータ名（標準地域メッシュコード, メッシュ中心経度, メッシュ中心緯度, 各S波速度層の上面深度（m））を示しています。
２行目からデータが始まります。

実際のファイルの内容例：
"MESHCODE","Lon","Lat","Vs350上面深度","Vs350上面深度","Vs400上面深度","Vs450上面深度","Vs500上面深度","Vs550上面深度","Vs600上面深度","Vs650上面深度","Vs700上面深度","Vs750上面深度","Vs800上面深度","Vs850上面深度","Vs900上面深度","Vs950上面深度","Vs1000上面深度","Vs1100上面深度","Vs1200上面深度","Vs1300上面深度","Vs1400上面深度","Vs1500上面深度","Vs1600上面深度","Vs1700上面深度","Vs1800上面深度","Vs1900上面深度","Vs2000上面深度","Vs2100上面深度","Vs2100上面深度","Vs2700上面深度","Vs2900上面深度","Vs2700上面深度","Vs3100上面深度","Vs3200上面深度"
"5138000041",138.007812,34.005208,0,0,0,0,0,0,0,160.511,160.511,160.511,160.511,160.511,160.511,160.511,160.511,160.511,281.749,281.749,281.749,775.973,775.973,775.973,4775.481,4775.481,4775.481,4775.481,5629.317,6634.212,7442.695,7442.695,7442.695,7442.695
"5138000042",138.010937000784,34.005208,0,0,0,0,0,0,0,150.814,150.814,150.814,150.814,150.814,150.814,150.814,150.814,150.817,279.636,279.636,279.636,760.384,760.387,760.387,4638.21,4638.21,4638.21,4638.21,5474.626,6586.75,7427.836,7427.836,7427.836,7427.836
"5138000131",138.014062001569,34.005208,0,0,0,0,0,0,0,150.248,150.248,150.248,150.248,150.248,150.248,150.248,150.248,150.25,280.521,280.521,280.521,757.88,757.883,757.883,4623.957,4623.957,4623.957,4623.957,5469.483,6549.068,7397.148,7397.148,7397.148,7397.148

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