Excel Data Entry Cleanup

I have a collection of Excel/CSV files that need to be consolidated, checked, and polished so they are ready for analysis and reporting. The raw sheets contain a mix of blank cells, occasional typos, uneven date and number formats, and some possible duplicate records.

Your job is to:
• Enter any missing rows or columns from scanned notes I will supply as images or PDFs.
• Review every field, correcting obvious spelling or numeric errors.
• Standardize dates, currencies, percentages, and other formats so each column is consistent throughout the workbook.
• De-duplicate the data while preserving the first complete record when matches appear.
• Return a single, clean Excel file plus the original, unaltered copy for reference.

I’ll share the files via Google Drive. A brief “before / after” changelog inside a separate tab will help me follow what you did. Accuracy is far more important than speed, but I would like the first pass within three days, with one revision round included if anything was missed.

If you are comfortable working directly in Excel or with tools like Power Query, that’s a plus—though manual cleanup is perfectly fine as long as the end result is spotless.