Hi everyone, I ran into a problem while building a simple workflow in KNIME and would like some guidance. Here’s what I did: I used a Variable Creator node to create a variable called PathOut to store the output path. I wanted to pass this variable to an Excel Writer node so that it could be used when writing to an Excel file. However, I noticed that the variable is not being correctly recognized in Excel — the written file does not contain the value of PathOut. What I have tried: Ensuring that the variable name in the Variable Creator matches the one used in the Excel Writer. Checking the Flow Variables tab in the Excel Writer node — the variable appears there but I am unable to bind it to the Path field. Despite this, the issue persists. Could anyone advise on how to properly use a variable created in Variable Creator so that it can be accessed by the Excel Writer node? Or am I misunderstanding the difference between Variables and Flow Variables? Thank you! [01] [02] [03]

@DanielHua KNIME uses Path Variables . You will have to convert your string or create a new one. [image] Write multiple CSV file to a loop KNIME Analytics Platform @VJAM the creation of Flow Variables for Paths is maybe not 100% straightforward. Maybe this example might help to sort it out. The “path_values” is maybe not perfectly named. I think this is constructed that you could pass several Folder variables as collection strings. Also: CHunk Loop Start might have to be set to 1. Often I prefer the Table Row to Variable Loop Start node. [image] [image]

Unable to Access PathOut Variable from Variable Creator in Excel Writer

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mlauber71 September 8, 2025, 8:19am 2

@DanielHua KNIME uses Path Variables. You will have to convert your string or create a new one.

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