dir : str 
 
bin_file : str, optional 
Filename of binary file in directory. None uses standard files. 
 
acqus_files : list, optional 
List of filename(s) of acqus parameter files in directory. None uses
standard files. 
 
pprog_file : str, optional 
Filename of pulse program in directory. None uses standard files. 
 
shape : tuple, optional 
Shape of resulting data.  None will guess the shape from the spectral
parameters. 
 
cplex : bool, optional 
True is direct dimension is complex, False otherwise. None will guess
quadrature from spectral parameters. 
 
big : bool or None, optional 
Endiness of binary file. True of big-endian, False for little-endian,
None to determine endiness from acqus file(s). 
 
read_pprog : bool, optional 
True to read pulse program, False prevents reading. 
 
read_acqus : bool, optional 
True to read acqus files(s), False prevents reading. 
 
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