This prevents tiddlywiki from getting bogged down by importing a single huge tiddler at a time, and provides a buffer pool for tiddlywiki
（English roots and affixes）
tiddlers (7).json (56.5 KB)
（Remove duplicate English word lists）
end.txt.json (3.6 MB)
For security reasons browser vendors do not allow you to dynamically load files from the users harddisk without user actions.
So users have to “trigger” the import mechanism with mouse click or any other active action, that opens the native browser “file dialogue”.
The only way that really makes sense is to use the right sidebar → Tools → Import dialogue or drag and drop import.