Oracle Apps Cash management upload data issue

Dear All,

I have got new requirement in Oracle apps Cash management module,here users giving to me some budget data(data from third party system),my functional people is saying to upload data into one custom table after users need to update data in application but not in standard forms,after updation of the data users needs that into one .csv file

could plese suggest me which way can i do this requirement.

please me help me thank you in advance.