Looking at the excel sheet you attached, Excel is displaying the values in scientific notation. You can format the cells as Number and change it to 0 decimal places and they’ll appear like so:
I also tested setting the output attribute type in the writer to string and that worked (without needing to change the cell format in excel)
@lambertus Changing it number is what @hkingsbury did earlier, but that will change other part of the numbers to zeros (000000), which is not the same with the actual figures from the database.
@lambertus and @hkingsbury I was able to solve the issue using Attribute Manager Transformer to change the data type for the cin, to accept large numbers .