The Data Upload for Ad hoc allows sending a custom data source in the CSV, JSON, or XML format. These settings can be found in the server configuration under Configuration → Ad Hoc → Settings → Data Upload.

Here you can configure:

• Enable Data Upload - Set to true if users should be allowed to upload their own data sources to the server. Set to false to disable data uploads.
• Upload Limit - The maximum data size limit to apply when uploading a data source. The limit can be specified in KB, MB, or GB. A typical value is 50 MB.
  • Note: The limit can be further restricted by, e.g. the application server or a proxy. Make sure the application server's maximum upload size is at least as large as the configured limit.