Bill Jelen

Books
Train Your Own GPT Train Your Own GPT
Train Your Own GPT
2025
Microsoft Excel VBA and Macros Microsoft Excel VBA and Macros
Microsoft Excel VBA and Macros
2025
Microsoft Excel Pivot Table Data Crunching Including Dynamic Arrays, Power Query, and Copilot Microsoft Excel Pivot Table Data Crunching Including Dynamic Arrays, Power Query, and Copilot
Microsoft Excel Pivot Table Data Crunching Including Dynamic Arrays, Power Query, and Copilot
2024
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
Microsoft Excel VBA and Macros (Office 2021 and Microsoft 365) Microsoft Excel VBA and Macros (Office 2021 and Microsoft 365)
Microsoft Excel VBA and Macros (Office 2021 and Microsoft 365)
2022