--Development History--
Samsung Fire & Marine Insurance Co., Ltd.: Product Analysis Answer Key Development Project
Doosan Heavy Industries & Construction Co., Ltd.: BEP Simulator
KT Corporation: Job Competency Advancement Program
Yanggu-gun Forestry Association: Proxy Management Program
Kumho Tire Co., Inc.: Supply Chain Management (SCM) Program Excel Part
LG Electronics: Global Procurement Analysis System Excel Part
Samsung Electronics: Global SCM Demand Analysis System Excel Part
IBM Korea: Vendor Selection Program, Excel Training for Procurement Staff
KB Kookmin Bank: Next-Generation New Product Factory Excel Part
Woori FIS: Next-Generation Project Excel Part
K-water: Water and Sewage Construction Cost Estimation Program
Haenam-gun Agricultural Technology Center: Microorganism Management Program
Community Chest of Korea: Budgeting Program
I have developed hundreds of other projects and continue to work as an active Excel programmer.
--Books--
1. Excel Summary for Smart Work Life (Basic Book 3)
2. Excel Master's Macro VBA (Macro Book)
3. Excel Master's 2016 Mastering Book (Basic Book 2)
4. Excel Master's Excel Function Mastering Book
5. Excel Master's 2013 Mastering Book (Basic Book)