[求助]如何在matlab中读取大规模数据

本人有4万多条ASC码的三维坐标数据，请问怎么样在MATLAB中读取并且用三维图显示出来？急！望各位高手指点！

0 3.655485 140

1.5 3.655485 140

3 3.655485 141

4.5 3.655485 142

6 3.655485 144

7.5 3.655485 145

9.000001 3.655485 147

10.5 3.655485 149

12 3.655485 150

13.5 3.655485 152

15 3.655485 154

16.5 3.655485 155

18 3.655485 157

19.5 3.655485 158

21 3.655485 160

22.5 3.655485 162

24 3.655485 164

25.5 3.655485 165

27 3.655485 167

28.5 3.655485 168

30 3.655485 169

31.5 3.655485 171

33 3.655485 172

34.5 3.655485 173

36 3.655485 174

37.5 3.655485 176

39 3.655485 177

40.5 3.655485 178

42 3.655485 179

43.5 3.655485 181

45 3.655485 182

46.5 3.655485 183

48 3.655485 184

49.5 3.655485 185

51 3.655485 186

52.5 3.655485 187

54 3.655485 188

55.5 3.655485 190

57 3.655485 191

58.5 3.655485 193

60 3.655485 194

61.5 3.655485 195

63 3.655485 197

64.5 3.655485 197

66 3.655485 198

67.5 3.655485 199

69 3.655485 199

70.5 3.655485 200

72 3.655485 200

73.5 3.655485 201

75 3.655485 201

76.5 3.655485 201

78 3.655485 201

79.5 3.655485 201

81 3.655485 201

82.5 3.655485 201

84 3.655485 200

85.5 3.655485 200

87 3.655485 199

88.5 3.655485 198

90 3.655485 198

91.5 3.655485 197

92.99999 3.655485 196

94.5 3.655485 195

96 3.655485 194

97.5 3.655485 193

99 3.655485 192

100.5 3.655485 191

102 3.655485 191

103.5 3.655485 190

105 3.655485 189

106.5 3.655485 188

108 3.655485 187

109.5 3.655485 186

111 3.655485 185

112.5 3.655485 184

114 3.655485 183

115.5 3.655485 181

117 3.655485 180

118.5 3.655485 179

120 3.655485 177

121.5 3.655485 176

123 3.655485 175

124.5 3.655485 174

126 3.655485 172

127.5 3.655485 171

129 3.655485 169

130.5 3.655485 167

132 3.655485 166

133.5 3.655485 165

135 3.655485 163

136.5 3.655485 161

138 3.655485 160

139.5 3.655485 159

141 3.655485 157

142.5 3.655485 156

144 3.655485 155

145.5 3.655485 153

147 3.655485 153

148.5 3.655485 153

S endscan1。。。。

此为其中一段