# File lib/spreadsheet/excel/writer/worksheet.rb, line 381 def write_dimensions # Offset Size Contents # 0 4 Index to first used row # 4 4 Index to last used row, increased by 1 # 8 2 Index to first used column # 10 2 Index to last used column, increased by 1 # 12 2 Not used write_op 0x0200, @worksheet.dimensions.pack(binfmt(:dimensions)) end