Excel Sheet Uppercase Conversion

I have an existing Excel workbook where every text entry—across all columns and rows—must be converted to UPPERCASE. Nothing else about the file should change: formulas, number formats, cell widths, and conditional formatting must remain intact.

You may use any reliable approach you prefer—built-in Excel functions, Power Query, or a short, well-commented VBA macro—as long as the result is a clean file with all text fully capitalized. I do not need any other transformations such as removing special characters or splitting/combining cells.

Deliverable:
• A final .xlsx file (or a reusable macro) that opens with every text value already in uppercase and ready for immediate use.

A quick turnaround is appreciated, and feel free to message me if you need to see a sample sheet before starting.