I would like to set checked / unchecked a checkbox by its name in a word document.
Thanks for your inquiry. Please note FormField class represents legacy form controls. However, StructuredDocumentTag class represents a structured document tag (SDT or content control) in a document. In your case, you need to use StructuredDocumentTag class. Please check following documentation link to check/uncheck checkbox, it will help you to accomplish the task.
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