Which file type is supported when performing a bulk upload of destinations into a destination list on Cisco Umbrella?

XLS (Microsoft Excel Spreadsheet) is not typically supported directly for bulk uploads in many web interfaces; conversion to CSV is usually required.

RTF (Rich Text Format) contains formatting information and is unsuitable for simple plain-text bulk data uploads.

While TXT (plain text) files can contain lists of destinations, CSV is the more precisely defined and commonly supported format for bulk data import in web applications like Cisco Umbrella.

Cisco Umbrella specifically supports the Comma Separated Values (CSV) file format for bulk uploading destinations to a destination list. This format allows for efficient entry of multiple domains or IP addresses, with each entry typically on a new line or separated by commas, which the Umbrella interface can parse effectively.