I don't understand why I can't modify Excel Data Writer after it is created. I get the error message "An error occurred executing the transform: object reference is not defined to an object instance" :
There is no properties windows as shown here in the help site : Excel Target (liquid-technologies.com)
I must delete the previous one and create another... and recreate all links. Impossible to change anything..
The same issue occurs when there is columns of Excel Writer that are not linked to anything...
Other point : the "Write colums name" option is not effective ??? : data are written but no columns names are written..
I reinstalled Liquid Studio 2021 = no change, same issue
I reinstalled Visual Studio 2019 Community and all .NET SDK = no change, same issue
Thank you in advance for your answers.