Which of the following are acceptable feed file types?

The selected answer options, ZIP, GZ, and TXT, are correct because they are all acceptable feed file types for use in Microsoft Advertising shopping campaigns. ZIP files are commonly used because they allow multiple files to be compressed into a single file, making it easier to manage large product feeds. GZ (gzip) files are also supported and used to compress product data, reducing file size while maintaining the integrity of the data. TXT files, typically in tab-delimited or comma-separated format, are another acceptable file type for submitting product information. XLS is not an acceptable feed file type because Microsoft Advertising typically does not accept Excel files directly for product feeds. Therefore, ZIP, GZ, and TXT are the correct and supported formats for product feed submissions.