Hi @pallavi7gurav, welcome to the community.
Whenever you open a form on the webform version within KoBoToolbox, you are actually using Enketo. For details, please visit our support article Collecting Data through Web Forms.
Or you can click below to learn about enketo:
https://support.kobotoolbox.org/enketo.html
For matrix question type you can use the link below:
https://support.kobotoolbox.org/matrix_response.html
Hope this information helps.
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