This book aims to teach readers how to harness the power of Excel to solve practical problems encountered both at work and at home. The information provided will help users perform essential financial and economic calculations, process tabular data, and accurately present their results—whether they are private entrepreneurs, managers, economists, accountants, or anyone interested in managing their personal finances, such as household bookkeeping. Featuring a wide range of examples across various sectors of the economy, the book covers key topics like calculating income and expenses, taxation and accounting, as well as business analysis of large datasets and pivot tables. To enhance convenience, a CD is included with electronic spreadsheet files corresponding to each chapter. All files are organized into folders named after the chapters for easy navigation. The content focuses on the latest version of Excel available at the time—Excel 2007, part of Microsoft Office 2007. However, since the fundamental principles of working with spreadsheets remain consistent, the skills gained from this book can also be applied to earlier versions of Excel.