{"text_format":"2","workbook":"xls","n_sheets":3,"sheets":["Sheet1","Sheet2","Sheet3"],"not_rendered":{"charts":2,"images":0,"macros":0,"external_links":1,"defined_names":0,"comments":0,"pivot_tables":0},"unopened":[],"bounds":{"document_bytes":16777216,"sheet_cells":100000,"run_cost":"one","rows_first":2000,"rows_last":500,"rows_between":2000,"halvings":0,"cell_chars":16384,"cell_head_chars":4096},"cells_cut":0,"cells_raw":0,"read":"whole","date_system":"1900","formulas":"cached_only"}

{"sheet":"Sheet1","index":0,"n_rows":21,"n_cols":4,"rows_kept":21,"cut":false,"hidden":false,"merged":[],"flags":["formulas_cached_only"]}
["INTRODUCTION TO SEISMIC REFRACTION"]
["Geophysics"]
["U. of Arkansas"]
["S.K. Boss"]
[]
["v1 (m/s)",3000]
["v2 (m/s)",4000]
["Layer1 thick (m)",5]
[]
[null,"Direct","Reflected","Refracted"]
["OFFSET (m)","TIME (ms)","TIME (ms)","TIME (ms)"]
[2,0.6666666666666666,3.3993463423951895,3.2105351569295144]
[4,1.3333333333333333,3.5901098714230026,3.7105351569295144]
[6,2,3.8873012632302,4.210535156929514]
[8,2.6666666666666665,4.268749491621899,4.710535156929515]
[10,3.3333333333333335,4.714045207910317,5.210535156929514]
[20,6.666666666666667,7.4535599249993,7.710535156929515]
[30,10,10.540925533894598,10.210535156929515]
[50,16.666666666666668,16.996731711975947,15.210535156929515]
[100,33.333333333333336,33.4995854037363,27.710535156929517]
[200,66.66666666666667,66.7499479816693,52.71053515692952]

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

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