Register UDF with descriptions of arguments using excel addin
问题 I have an addin with an UDF getRegExResult . I want to add a function description and arguments descriptions to this function, so when user installs the addin, closes, opens excel few times and goes to "Insert Function" Dialog box he will be able to find the function with description of the arguments. The same is asked here. I found one answer that suits my needs. Except... I want to be able to do this through an Excel Addin. My idea is to put call into addin workbook_open event like so: