Comprehensive Spreadsheet Error Fixes

I need my spreadsheet fully audited and repaired. Your first task is to track down and correct every wrong or missing value, weed out duplicate or misplaced entries, and repair any broken formulas you come across. While doing so, please bring the entire file to a consistent look and feel—uniform cell formats, clear headings, balanced column widths, and clean conditional formatting where useful.

Accuracy is critical. For each value you change, confirm it against reliable online sources rather than relying on the sheet itself; if a figure cannot be verified externally, flag it for my review instead of guessing.

Deliverables:
• A cleaned, fully functional spreadsheet with all verified figures and formulas working
• A brief change log (tab or separate file) noting cells adjusted, sources consulted, and any rows you flagged for clarification

I work quickly once I see solid progress, so share an early sample of your fixes and sources; that will let us align on approach before you tackle the rest of the data.