I have what I thought was a simple model to create. Basically I will run this once a week. What it is, is a table from SDE that is updated nightly I just want to write out a row with number of features (or how many new features added) and the date the model was run basically. I was just going to build a list and use ListElementCounter to sum up total features. My main problem is obviously when it writes out it always wipes the spreadsheet. If anyone has any imput on any aspect of what i'm trying to do (but mainly keep adding rows for the new dates that come in). I'm all ears. One last thing I have tried setting the Writer Mode to Update but it ends up blank so might not be what I'm looking for... Thanks for your time.