{"text_format":"3","workbook":"xlsx","n_sheets":3,"sheets":["Feuil1","Feuil2","Feuil3"],"not_rendered":{"macros":1},"read":"whole","date_system":"1900"}

{"sheet":"Feuil1","index":0,"n_rows":2,"n_cols":4,"rows_kept":2}
["Nom de la","Al 167.019 nm ppm","Ca 422.673 nm ppm","Fe 238.204 nm ppm"]
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{"sheet":"Feuil2","index":1,"n_rows":0,"n_cols":0,"rows_kept":0}

{"sheet":"Feuil3","index":2,"n_rows":2,"n_cols":2,"rows_kept":2}
["Al 167.019 nm ppm",0.01]
["Ca 422.673 nm ppm",0.04]