When using an SQLCreator and writing to a dynamic Excel-file for multiple queries I get the error the fme_feature_type does not exist. I've tried adding it with an attributeCreator with the value 'test' but the message keeps occuring. Any thought

You have it set to dynamic, which means FME is looking for schema information to determine which attributes to write into the excel sheet. If you only want to fanout the information on the sheet name (i.e. have the same attributes on each sheet) you don't need to use a dynamic writer

I would like to write 6 different queries with 6 different sets of attributes to 6 different sheets in one Excel-file. For the sheet name of each query I'd like to use a custom attribute which attribute name -so I thought- should contain the name of the sheet. This custom attribute should then be added to the parameter 'Sheet Name' in the Feature Writer. But I am still new to FME, so I don't know exactly how this should be done.