Using the latest v4 Beta build, I've found that it doesn't properly "clean" cached formula results. So, when editing a pre-existing worksheet, where a formula had previously returned the text "IF V <> 2" as it's result, that cached result isn't cleaned up. So, instead of it being stored as "IF V <> 2" in the XML, it's being stored as "IF V <> 2". This results in an error in the XML.
It looks like Excel stores these cached results in an uncleaned manner, as well, but it doesn't cause validation errors until after the sheet runs through EPPlus.
It looks like Excel stores these cached results in an uncleaned manner, as well, but it doesn't cause validation errors until after the sheet runs through EPPlus.
