Most problems are not as hard as they seem at first. Often times, all you need is someone to show you how it is done once.
1. Working with formulas – sum, if, countif, sumif, average, sumifs, countifs etc.
2. Linking and extracting data from another sheet or document;
3. Formatting cells by purpose;
4. Cell data validation and auto-completion rules;
4. Pivot tables and graphic data representation;
5. Large data sets merging;
6. Data and Document Transformation into another file type;
8. Customer-specific issue solving;