ExcelHelper | Library to help reading and writing Excel files | Data Visualization library

It worked up-on removing the auto-generated Content-Type Header and adding this new header instead.

Content-Type:multipart/form-data; boundary=something

Also, updated the RequestMapping Annotation in the controller class to

You should be able to use the below code in your controller to get UserDetails of the logged in user.

ICell defines a property .DateCellValue, so you should use this when mapping your date values:

The throws clause is for exceptions that might get thrown while your method is running, but aren't explicitly caught within your method. In your case, you're certainly throwing a DataException, but then you have a catch (DataException e), which catches the exception. So the exception is never thrown out of the method, which means that you don't have to declare it.

You only have to declare an exception in a throws clause if it's

• thrown within the method (or in something called by the method)
• not caught within the method
• not a subtype of RuntimeException.

and you should avoid declaring any exceptions that don't meet these criteria. That's what the compile warning is telling you.