AutoCAD Layers are not Layers
AutoCAD “Layers” should be called Collections, or Bundles. They are a way of grouping objects (lines, blocks, text, whatever you like) together so you may easily adjust properties they share.
Using ACNE with Excel 2007 or 2010
ACNE was originally developed to run in Windows XP and with versions of Excel that used the .XLS format (97 & 2003). Excel’s file format changed to the .XLSX format with the release of Office 2007 and continues with Office 2010. Both ACNE and Excel need some adjustments to make ACNE work properly.

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