How to validate xl data

i am working on xl sheets , when im uploading the xl sheet it is storing into the models but i need before storing into the models validate the data

eg:

username : ,must be str not int

reference id : ,must be int not str

email : ,contains @gmail.com , not strt not int

i need to validate like above

this is code my code 

working but i need validations

class UploadPersonView(APIView):	permission_classes = [IsAuthenticated, IsAdminPermission | IsSuperAdminPermission]
	serializer_class = PersonUploadSerializer
	def post(self, request, *args, **kwargs):
	serializer = self.serializer_class(data=request.data)
	serializer.is_valid(raise_exception=True)
	dataset = Dataset()
	file = serializer.validated_data['file']
	imported_data = dataset.load(file.read(), format='xlsx')
	'''uploading xl file with particular data what user mentioned in xl we are looping the xl data
	and appending into the database with same fields''' # validate data here before upload
	for data in imported_data:
	person_data = UserProfile(username=d,
	fullname=data[1],
	mobile=d2,
	email=data[3],
	password=make_password(data[4]),
	date_joined=data[5],
	is_verified=data[6],
	is_active=data[7],
	is_admin=data[8],
	is_manager=data[9],
	is_tl=data[10],
	is_agent=data[11],
	orginization=data[12],
	dob=data[13],
	gender=data[14],
	team_name_id=data[15],
	role=data[16]
	)
	person_data.save()
	return Response({'sucessfully uploaded your file'}, status=status.HTTP_200_OK)
	except:
	return Response({'message': 'aaa'}, status=status.HTTP_404_NOT_FOUND)

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