00856nam a2200205Ia 4500 CTU_217253 210402s9999 xx 000 0 und d 34.22 005.54 W181 Walkenbach, John Excel 2007 formulas John Walkenbach Indianapolis Wiley Pub 2007 John Walkenbach's name is synonymous with excellence in computer books that decipher complex technical topics. Known as "Mr. Spreadsheet," Walkenbach provides you with clear explanations on all the methods you can use to maximize the power of Excel with formulas within the frameworks of all the new features of Excel Microsoft Excel,Phần mềm Excel Trinh, Sang, Tuyến Trung tâm Học liệu Trường Đại học Cần Thơ