Error: Unknown question type 'begin_kobomatrix'


I’m trying to build two very simple tables. I have followed the instructions given in Question Matrix Response Type. However, upon validation, I receievd Error: Unknown question type ‘begin_kobomatrix’ as an error message. Attaching the xls form for reference. Please advise.
Kobo.xlsx (12.0 KB)

@minuri_perera, kindly please be informed that the begin_kobomatrix is a KoboToolbox specific feature that only supports with KoboToolbox. Hence, you will see error message with the online validator.