Gigasheet sheets can be set to allow view-only access to the general public. Anyone with the link will be able to access the sheet, and no Gigasheet authentication is then required to view it. Use Share Publicly when you want to present datasets to an anonymous audience. 

Share Big Data Files In Gigasheet

To Share Publicly, click File -> Share, and then toggle to the Share Publicly tab.  After doing so, toggle the Enable Public Link option. 

This will present a link that can be accesses without authentication.  Navigating to that window without logging in to a Gigasheet account, the anonymous user will see this:

Shared big data preview

The filter and group state are saved, and can be modified there in the public sheet. Anonymous users can likewise pivot on the data as well. The ability to run functions like Arithmetic, Enrichments, and Cross File VLookups, or modify Columns via splits and combines, is not available in the Public view of the sheet.