{"text_format":"3","workbook":"xls","n_sheets":3,"sheets":["Sheet1","Sheet2","Sheet3"],"read":"whole","date_system":"1900","formulas":"cached_only"}

{"sheet":"Sheet1","index":0,"n_rows":30,"n_cols":1,"rows_kept":30,"merged":[[0,0,0,8]],"flags":["formulas_cached_only"]}
["사진대지 "]
["설명"]
{"$rows_empty":8}
["근경"]
{"$rows_empty":18}
["원경"]

{"sheet":"Sheet2","index":1,"n_rows":0,"n_cols":0,"rows_kept":0,"flags":["formulas_cached_only"]}

{"sheet":"Sheet3","index":2,"n_rows":0,"n_cols":0,"rows_kept":0,"flags":["formulas_cached_only"]}