Form error

Buena noche. Me sigue saliendo este error y no entiendo cual es. ODK Validate Errors: [Fatal Error] :56671:24: An invalid XML character (Unicode: 0x1a) was found in the element content of the document. >> XML is invalid. See above for the errors. org.xml.sax.SAXParseException; lineNumber: 56671; columnNumber: 24; An invalid XML character (Unicode: 0x1a) was found in the element content of the document. The following files failed validation: ${tmp4j7hevw0} Result: Invalid FCA_V01_B.xlsx (570.5 KB) Agradezco su colaboraciĆ³n. Anexo archivo.

@carlos_diaz1978, when you have such a long list of choices, maybe it would be good that you use the select_one_from_file question type to solve your issue as outlined in the support article Select One or Many From External File Question Type.