How to check Excel file (in PC) is updated contents and if yes(its updated), continues send email.

[mlauber71]

@cppong maybe you can take inspirations from these solutions / components:

Start a Workflow, e. g. a database query, after a certain time

You could absolutely combine the approaches, I would think. Thank you @kienerj for pointing to this feature. Another interesting function could be this component by @gab1one that would wait for a file to change. In order to bring this into a ‘looping system’ - some changes might be necessary. In my example I tried to do a small such system with generic KNIME nodes.

Start a Workflow, e. g. a database query, after a certain time

@USCHUKN1ME I tried to build a system you might be able to expand and use. The idea is to have a workflow that would iterate a number of times (v_number_of_intervals) with a set interval (of seconds) between (v_seconds_interval) them. The workflow looks for a trigger_file.csv if this file has changed from the last time the loop has run a component would be executed. If the file has not changed nothing would happen. Admittedly not the most elegant way but you could build a small automatic execu…