This error can occur when using 64‑bit Excel, as the add-in does not support 64‑bit Microsoft Office.
You will need to install the 32‑bit version of Microsoft Excel.
XPA: Error: The file format and extension of 'Xcede.AddIn.xll' don't match
The file format and extension of 'Xcede.AddIn.xll' don't match. The file could be corrupted or unsafe. Unless you trust its source, don't open it. Do you want to open it anyway? when opening XPA.
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