2 Replies Latest reply on Sep 4, 2018 6:12 AM by Marie Harris

    Combining two large CSV files

    Marie Harris

      Hi there,  I need to combine two CSV files (they are too big to do this in Excel). They both have the same columns and I just need to add the rows of one onto the other.  I've created an extract twbx file for CSV file No1, added a new Data source for file number 2 and I can see them both in the data pane but when I go to create a 'New Union' file No2 is greyed out.  Am I doing something wrong? (I'm on Tableau desktop 2018.2.0  - I can't share the workbook because it's sensitive information).  Thanks!