software for Shop in windows

1. Customer info add/delete/update 2. Bill system ( gst or without gst) In gst tax invoice or in without gst estimate should be written in top Bill should be print in good design and format. 3. Data should be download in Excel another format. As every month or which type I want 4. Stock management of gold and silver items. Like if we sale gold earring it will minus from total gold only in GST bill And silver from silver. 5. From the help of this board we can add total balance due payment and other balance to the customer. [login to view URL] and owner login are different 7. And one another customer list which access with the help of special permission where I add customer amount percentage and calculate the total interest by the day when the customer added. We should modify all the the information with the help of dash board and can see who has modified it. For Windows and will work offiline