If you can use drag-and-drop.... just select all the text files and drop them into an open TiddlyWiki and they will be imported as separate tiddlers, using the filename as the tiddlername.
Note: the "type" field of each tiddler will be set to "text/plain". If you want to add wiki syntax to the imported text, you will need to clear the type field in the tiddler editor (click the trash can next to the field).
enjoy,
-e
Eric Shulman
ELS Design Studios
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