Many developers/programmers while writing code to extract data from an excel Intermixed data columns struggle to read the data. Reading data from an excel file is always been a challenge as the first row (record) of the data in excel defines the data type of the column. For example if the first row has the data as Integer and any consecutive row has the data as Float, excel read operation would fail as it expects the rest of the data in that column to be of Integer type.