
N8n doesn’t have a concept of plain text.
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But, how do I append text-lines to a text file?

You can then save your data in a file using another Spreadsheet file node and finally write it to your local filesystem using the Write Binary File node (or instead upload it somewhere, send it out via email, etc.). This node can read all the data from your sheet and convert it into n8n items which you can then manipulate in n8n as needed. This node expects incoming binary data (a file), which you could read from your local filesystem using the Read Binary File node in a previous step.

To create Excel files rather than Excel online documents you’d probably want to use the Spreadsheet File node. How do I manipulate cells in an Excel file written on disk (ie: without credentials, just tell the file path on the host)?
