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Microsoft Excel is one of the most versatile tools for managing and analysing data. However, its out-of-the-box functionality often falls short when dealing with repetitive, complex, or customised tasks. Enter VBA (Visual Basic for Applications), a powerful tool that enables you to extend Excel's capabilities. Creating custom add-ins with VBA allows you to automate complex tasks, save time, and improve productivity. Through this guide, you will discover how to develop custom Excel add-ins using VBA and how they can be used to improve efficiency by simplifying routine operations and workflows. If you plan to take a data course, enrol in an inclusive course such as a data analytics certification with extensive VBA coverage. Mastering VBA for automation can give you an edge in handling large datasets efficiently. What Are Excel Add-ins? Excel add-ins are supplemental programs that enhance Excel’s functionality. They provide custom commands and features that can be accessed through th...

Data profiling is critical in ensuring data quality and consistency within an organisation. It involves examining data from existing sources to collect statistics and information that provide insights into its structure, quality, and consistency. Thanks to its advanced capabilities in querying, analysing, and managing relational databases, SQL (Structured Query Language) is an essential tool for data profiling. Many professionals learn these techniques through data analyst classes , which equip them with skills to handle data effectively. This article explores how SQL can be utilised for data profiling and the steps to analyse data quality and consistency effectively. What is Data Profiling? Data profiling evaluates data for its completeness, accuracy, and conformity to defined standards. It helps identify anomalies, errors, and inconsistencies impacting downstream processes, such as reporting, analytics, or decision-making. The primary objectives of data profiling are: Assessing Data...