some correction to the exl reader

[mosmos]

'''

OPTION 1

J={}
for col in df.columns:
J[col] = df[col].tolist()

OPTION 2

df.setindex('ALIAS')
df.to_dict(orient='index', into=<class 'dict'>)
'''

[mosmos]

the most important thing is the get the JSON as clean as possible . no more jobs are needed to fix it out of the function
Nan->"";None;