Is that possible to read a XLSX file ?
try or have a look
node-red-contrib-spreadsheet-in
There are lots of ways. When I'm processing things for work, I tend to use these in a function node:
As it gives a lot of flexibility.
You might also want to think whether it would be better to save the data you want to a CSV file rather than keeping in Excel. That gives you a lot more options.
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