{"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":4,"n_cols":5,"rows_kept":4,"flags":["formulas_cached_only"]}
["项目","预估数量","单价","合计"]
["《心脑血管病防治》","1500 册 / 期",null,null,"包含排版所有事宜"]
["《中华老年病研究电子杂志》","1000 册 / 期",null,null,"包含排版所有事宜"]
["《中华老年病研究电子杂志》","——",null,null,"仅做排版，不印刷"]

{"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"]}