Tag Archives: Microsoft.Office.Interop.Excel

Failed to load file or assembly “Microsoft.Office.Interop.Excel” Solution

The project reported an error. At first I thought it was a dll problem, but it didn’t work.

Later, I checked the information and found out that it was necessary to set the representation in the application pool corresponding to the website to LocalSystem

Set it once, and set it to others later

Record the bits and pieces of programming and experience the joy of learning