Describes the cause and action for error messages.
Error Message(English)：
.application is not defined vb.net
Error importing and exporting excel data to vb.net, "Microsoft ...
https://stackoverflow.com/questions/20973280/error-importing-and-exporting-excel-data-to-vb-net-micr・・・
Outlook.Application not defined
https://stackoverflow.com/questions/9163559/outlook-application-not-defined
Why do I get "not defined" on all the Excel objects even ...
https://stackoverflow.com/questions/33378965/why-do-i-get-not-defined-on-all-the-excel-objects-even-・・・
Applicationclass error when opening excel workbook
https://stackoverflow.com/questions/31875314/applicationclass-error-when-opening-excel-workbook
vb.net - Microsoft.Office.Interop.Excel.Application - DaniWeb
https://www.daniweb.com/programming/software-development/threads/473714/microsoft-office-interop-exc・・・
User-defined type not defined (VBA) | Microsoft Docs
https://docs.microsoft.com/en-us/office/vba/language/how-to/user-defined-type-not-defined
Interaction.GetObject(String, String) Method (Microsoft.VisualBasic ...
https://docs.microsoft.com/en-us/dotnet/api/microsoft.visualbasic.interaction.getobject
VB.Net Excel Sheet - TutorialsPoint
https://www.tutorialspoint.com/vb.net/vb.net_excel_sheet.htm
VB NET How to fix error Type 'XlFixedFormatQuality' is not defined ...
https://www.youtube.com/watch?v=cuxIlwtIcEk