with the following loop i read several excel files from one folder and append them to one big table in knime.
Currently in the folder there are about 55 files (each with 90k rows). Each month i add one more file to the folder. The other files are not changing. It takes a lot of time until the loop is finished. My question is, is it possible that the loop only adds the data from the new file in the folder to the existing table? So that the loop does not have to run through everything again?