问题 I'm using a custom Add-in which adds functions to Excel, like UDF1(param1, param2). (1) example call in cell: =UDF1(param1, param2) When saving workbook1, which implements UDF(), Excel silently adds the path to the Add-in to each call of UDF(). This can be seen when uninstalling the Add-in and reopening workbook1. Excel asks to update external references, I click "don't update". (2) new cell content: ='\...\user\Desktop\Addin1'!UDF1(param1, param2) How to prevent Excel from saving the path to