Allow only CSV files
When you click the button + **Add CSV File **you can actually select all kinds of files. They all appear in the table. Doesn’t matter what files you select.
Ideally you prevent the upload of other files then CSV. Throwing a error message and blocking/ignoring those files.
<input id="load-csv-hidden" type="file" accept=".csv" multiple="" style="display: none">
You can always extend the support for other file extensions like this:
accept=".xlsx, .xls, .csv"
We will work on this in future releases. Thank you for your contribution!