Flowdock
each() public

Iterates over each item of OLE collection which has IEnumVARIANT interface.

   excel = WIN32OLE.new('Excel.Application')
   book = excel.workbooks.add
   sheets = book.worksheets(1)
   cells = sheets.cells("A1:A5")
   cells.each do |cell|
     cell.value = 10
   end
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