Why is Orca's "Import Text File" option grayed out?

Question

I'm trying to import a text file into an MSI cell, but Orca's option to do so is disabled.

My file isn't read only or in use. How can I enable that option?

Answer 1

Only unbounded string columns (String[0]) are compatible with the Insert Text File option. Other column types - even String[255] - don't accept (and won't truncate) arbitrary-length text.