Advice on Spreadsheet Apps

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http://androidforums.com – Hi, I am using a Samsung Galaxy S III. I am looking for the best Spreadsheet apps available. In Excel terms, it should be like a workbook and MUST include the following capabilities - 1. Handle formula including ARRAY formulas 2. Draw data from different sheets in to one sheet for computation 3. Allow DROPDOWN menus 4. Generate graphs 5. Allow conditional formatting In other words, it should be able to do what a normal Excel 2007 program can. Can someone advise me which apps would do these ? Thanks. Kayem (General)