load('PoroTomo_iDAS16043_160311234118.decimated.mat');
pwd

ans =

/t31/zengxf/dash_decimate/0311

dt

dt =

    0.0100

whos
  Name         Size                  Bytes  Class       Attributes

  ans          1x30                     60  char                  
  data      3000x8721            209304000  double                
  dt           1x1                       8  double                
  nch          1x1                       8  double                
  npts         1x1                       8  double                
  t0           1x1                     187  datetime              

t0

t0 = 

   2016/03/11_23:41:18.862432014

figure;imagesc(data)
[Warning: MATLAB has disabled some advanced graphics rendering features by switching to software OpenGL. For more information, click
<a href="matlab:opengl('problems')">here</a>.] 
exit