Column error-excel

handle error

How to handle this error

What type of error you getting kindly post that. kindly elaborate your scenario

I need to compare two DTs I have used Join table
it Dt coulums are not matching. The above image column has grren mark and other same dt column has no green mark. Print the both column data tables showing object

Its difficult to understand you like this please send your workflow in a zip format so anyone can help
Thanks

Sorry its confidential.
but I will share u the similar link