When Excel 2003 formula is being calculated, can pre-saved excel be opened?
I am working with Excel UDF (written in C#, returns array result) which takes lot of time. When udf is running,I am not able to open any existing excel sheet.
I want to confirm, whether there is problem with my udf or excel behaviour is like this with all udfs (to maintain formula consistency)? Is this behaviour also persist with excel in-built formulas?
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