A        colB  C        D
aaa      1     10e20    1.0
b        1.1   -1.0     1
ccccc    1000  0x01     Letter
e e      12345 10000    234
efghigkl -1    .1       -234
         +1    -10e-100 -10e-100
         0     -10e+100 -10e+100
