The cause appears to be the use of non-ASCII characters in file names. Microsoft describes it like so: “Any user may be ...
A Model Context Protocol (MCP) server that lets you manipulate Excel files without needing Microsoft Excel installed. Create, read, write, and analyze Excel workbooks (.xlsx, .xlsm) with AI assistants ...
Please don't use this package with [2.0.0 - 2.0.7] versions. It has major issues. Either Stick to 1.1.5 or move to 2.0.8 and so on.