Bill Jelen

Books
Power OneNote Power OneNote
Power OneNote
2008
MrExcel XL MrExcel XL
MrExcel XL
2015
Don't Fear the Spreadsheet Don't Fear the Spreadsheet
Don't Fear the Spreadsheet
2012
Train Your Own GPT Train Your Own GPT
Train Your Own GPT
2025
MrExcel 2022 MrExcel 2022
MrExcel 2022
2022
Guerrilla Data Analysis Using Microsoft Excel Guerrilla Data Analysis Using Microsoft Excel
Guerrilla Data Analysis Using Microsoft Excel
2022