Hi @Pragadeshgp , I have to make some assumption here as we can’t really see what you are trying to achieve.
If you are trying to write to the same sheet, you can concatenate your data with:
and then write to Excel as one result.
However, if you are trying to write to the same file but in different sheets, then you can use the Excel Sheet appender instead of the Excel Writer if you are on older version of Knime, and configure a different sheet for each of these writes.
New version of Knime apparently can do the append via the Excel Writer (I don’t have a new version of Knime). This is discussed in this topic: