Does anyone know if it’s possible to combine files via Celigo?

On their way from one system to another system? Generally yes, though what exactly are you trying to do?

If parsing the files, yes. If not parsing, no. Here is a recent community post that helps with an example. https://docs.celigo.com/hc/en-us/community/posts/18539412463259-Combine-two-NetSuite-Saved-Searches-output-to-one-CSV-file

@rico I meant combining files within Celigo. I will check the article @Tyler Lamparter thanks