First of all, CST software data can be exported to TXT format through post-processing-export -plodata operation, and for S parameters, snp format can also be exported through post-processing-export -touchstone operation, where n represents the number of ports, and this format can also be opened with Notepad, and its data meaning will be discussed next time.
The second method is copying? Paste: Open the txt document exported by CST, select the number part, or select all directly. However, after selecting all these contents, you need to delete the non-data contents later. Click the right mouse button to select Copy, open the origin, click the cell under the workbook 1 or 1, and click the right mouse button to select Paste.