data extrator

i want to extract data from olx and for that i need desktop version of taht softwere who extract data by olx (here data mean ad ) inculding all information like city name in which the ad post , tittle , Description , cell no , email , pic and all other information and when i run softwere on my local pc it start to work and ask me how many data do u want . softwere must have user friendly interfacer where i can give to softwere url of listing page because olx have lot of category if i give url of cars then data collect al informaation above given including make model yer registracion etc after extract data softwere give us csv file who have all information inculding pic url (pic will save in local folder)