what i would like my RFID project to do is, a reader ... from the DOOR of the room (store room) then detects how many tags are there left in the store for certain items. its fine if i could detect only ONE item instead of various for start up. then i guess i would have to send those code to the computer through whatever methods to keep track of how many tags are gone (lesser stocks) and indicates that its time to stock up. so probably yes, a sending those data to a spreadsheet.