Instruction: Discuss the steps and functions you would use to clean a dataset in Excel.
Context: This question evaluates the candidate's skills in data preparation, an essential step before any analysis, focusing on their knowledge of Excel's data cleaning capabilities.
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First, I always start with an assessment of the dataset to understand its structure, the type of data it contains, and any obvious inconsistencies or errors. This initial overview is crucial for planning the cleaning process.
Next, I use the Find and Replace feature to correct any obvious typos or inconsistencies in textual data. For example, if I'm working with a dataset where the company name "Tech Innovations Inc." is sometimes abbreviated or misspelled, I standardize the naming to maintain consistency....