Changing structure of program

[ApinHovo]

Commit

[eriktumosaryan]

@ApinHovo jan Please follow to this instruction in all you codes.

1. Multi-line comments Used in Functions (docstrings) Should Have a Short Single Line Description Followed By More Text
2. The docstring for a module function should include the same items as a class method, A brief description of what the function is and what it’s used for, Any arguments (both required and optional) that are passed including keyword arguments

Example

`
"""Gets and prints the spreadsheet's header columns

Parameters
----------
file_loc : str
    The file location of the spreadsheet
print_cols : bool, optional
    A flag used to print the columns to the console (default is
    False)

Returns
-------
list
    a list of strings used that are the header columns
"""

`

[ApinHovo]

@eriktumosaryan