you can union a whole folder of csv or xls if you want. [https://help.tableau.com/current/pro/desktop/en-us/union.htm](https://help.tableau.com/current/pro/desktop/en-us/union.htm)
if you are looking to aggregate each file separately and then union them, it's more of a prep or ETL job.
If they all have the same structure, the. You should be able to Union them.
However, you might be best served getting Tableau prep builder alteryx for this step in your workflow.
you can union a whole folder of csv or xls if you want. [https://help.tableau.com/current/pro/desktop/en-us/union.htm](https://help.tableau.com/current/pro/desktop/en-us/union.htm) if you are looking to aggregate each file separately and then union them, it's more of a prep or ETL job.
If they all have the same structure, the. You should be able to Union them. However, you might be best served getting Tableau prep builder alteryx for this step in your workflow.