ClosedXML doesn't evaluate formulas with the Round() function.
PS: Is their a list of supported / not supported functions?
Greetings,
Raidri
__See my comment for new description of the problem.__
Comments: ** Comment from web user: Raidri **
The test file is working with the new version. In my real file I found one small issue still:
Excel saved the formula as "=ROUND('Anlage'!C48, 2)" with the single quotes around "Anlage" (the sheet name). These give an error in ClosedXML (the "Identifier expected." exception) but can safely be removed so that it works. If you use the simple formula "='Anlage'!C48" it works both with and without the single quotes. Only inside the ROUND function they give the error.
This issue will come back if you have a sheet name with a space in it, than ClosedXML will throw a "Syntax Error" exception.
PS: I had the semicolons because I copied the formulas from the German Excel version with uses them because the comma is the decimal separator (this is only in the frontend, the saved files have the default symbols).