what are the most important things in excel?
['Conditional Formatting. Utility: 100. Difficulty: 3. ... ', 'PivotTables. Utility: 95. Difficulty: 3. ... ', 'Paste Special. Utility: 88. Difficulty: 3. ... ', 'Add Multiple Rows. Utility: 87. Difficulty: 0. ... ', 'Absolute References. Utility: 85. Difficulty: 2. ... ', 'Print Optimisation. Utility: 84. ... ', 'Extend formula across/down. Utility: 84. ... ', 'Flash Fill. Utility: 84.']