Data set for the mass spectrometry based exoproteome analysis of Aspergillus flavus isolates oleh Ramu Muthu Selvam, Rathnavel Nithya, Palraj Narmatha Devi, R.S. Bhuvana Shree, Murugesan Valar Nila, Naveen Luke Demonte, Chitra Thangavel, Jayapal Jeya Maheshwari, Prajna Lalitha, Namperumalsamy Venkatesh Prajna, Kuppamuthu Dharmalingam