Can the data be output - CSV format? Does it store to a removable data card?

The Reed R8080 is a sound level meter only. It doesn't record data other than the high and low level per session. If you would like something that records data you should look at the Reed R8050 kit - https://microdaq.com/reed-sound-level-meter-calibrator-kit.php This meter records data to an SD card and the data can be exported as a .CSV file.