This is an advance multi-platform on-premise POS named POS Excelsior. POS Excelsior allows to export the spreadsheet from our proprietary categorisation database. All payment record are keep, calculate and review in daily basis. This database is light-weight, easy access, read and write, in-memory and load on demand design. The most important of this database is on-premise design, all the POS commodity and payment data are stored locally.