reading header name of columns and validating it

@Jebarohith19
I do remember this topic from the discussion. I focused to return back the xaml as fast as possible that you can refer and check for the first iteration. With the change to iteration over datacolumns instead of columnames it was already prepared and preimplemented.

But keep one thing in mind, sometimes the readin mechanism interpretates the datatype different as it could be else. So lets clear first on what excactly you are interested and what is the purpose/benefit/risk of the bot

i got other things such as getting the column names checking up the sequenceorder and coloring the cell
now having the problem with checking datatypes for each columns

@ppr Please help I am getting the above error in the image