Hi This is Ganesh Kumar , Thank you so much for responding for the Issue.
The Issue is First I have four excels data like one, two, three, four, These are the excels, The user has to select the respective entity. It should be displayed the data as per the user by using one button and one uploadwidget. The validation should be done before the data to be upload,
If Columns are jumbled it has to pick the records accurately and create an entry. This validation should be for all four upload files
2] Validate the Datatype before upload, if particular row item data type is mismatch do not upload
3] All the invalid data has to be tracked in another entity