You have tried to select more than , which is the currently configured maximum number of you can select simultaneously. If you want to select more at a time, please increase this value in the preferences.
Supported file formats for data uploading
We support CSV and TSV files at the moment. Contact us if you have data in a different format, that you want to upload. You can export most spreadsheet formats to CSV, for example from Excel or LibreOffice.
Upload your data
You can currently upload files of at most 100 KiB. Please contact us if you have larger files that you want to upload.