{"text_format":"3","workbook":"xlsx","n_sheets":1,"sheets":["Sheet1"],"read":"whole","date_system":"1900"}

{"sheet":"Sheet1","index":0,"n_rows":28,"n_cols":2,"rows_kept":28}
["에러코드","메시지"]
[200,"Success"]
[300,"DATA is null"]
[310,"MSG_ID is null"]
[311,"MSG_ID : SIZE is Zero Or Over"]
[320,"SENDER is null"]
[321,"SENDER : SIZE is Zero Or Over"]
[330,"RECEIVER is null"]
[331,"RECEIVER : SIZE is Zero Or Over"]
[332,"RECEIVER is invalid number"]
[340,"SMS MESSAGE is null"]
[341,"SMS MESSAGE : SIZE is Zero Or Over"]
[350,"Subject is null"]
[351,"Subject is over capacity"]
[360,"Multimedia Message is null"]
[361,"Multimedia Message is over capacity"]
[370,"MMS_IMAGE is not exist"]
[371,"MMS_IMAGE is not support extension"]
[372,"MMS_IMAGE is not exists"]
[373,"MMS_IMAGE is over capacity"]
[380,"KAKAO_SENDER_KEY is null"]
[381,"KAKAO_SENDER_KEY is over capacity"]
[390,"KAKAO_TEMPLATE_CODE is null"]
[391,"KAKAO_TEMPLATE_CODE is over capacity"]
[400,"KAKAO_JSON_FILE is not exist"]
[401,"KAKAO_JSON_FILE is not support extension"]
[402,"KAKAO_JSON_FILE is not exists"]
[403,"KAKAO_JSON_FILE is over capacity"]