To tackle a raw data dump from various departments with inconsistent formats, I would first import all the data into Google Sheets. My initial step would be to standardize the data formats using Google Sheets' features like Text to Columns and Conditional Formatting to ensure consistency. Next, I would employ data validation techniques to check for any discrepancies or errors, using functions like IFERROR and ISBLANK to identify and rectify issues. After cleaning the data, I would use formulas such as VLOOKUP and Pivot Tables to consolidate the information, ensuring that all relevant data points are accurately captured. Finally, I would create a comprehensive MIS report by organizing the consolidated data into a structured format with clear headings and summaries, using charts and graphs where necessary to enhance clarity and facilitate data-driven decision-making. Throughout this process, I would ensure the accuracy and integrity of the data by cross-verifying with original sources and maintaining open communication with department representatives for any clarifications needed.