I'm trying to find an appropriate way to read the contents of an Excel file on an NT server operating system. I have numerous problems using the Excel API and then came across the official Microsoft on Office Automation which states that the Excel API is not suitable for Excel automation. The sorts issues that I saw were similar to those described in the article.

Is there another way that I can read an Excel file (xls, xlsx, xlsm) on a server (no UI) in such a way that doesn't suffer the same sort of threading/security/license issues imposed within the Excel API?

c# excel windows-services
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