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InvalidOperationException when Opening an existing Excel File

Nov 8, 2012 at 12:00 PM

Hi, i have an Existing Excel file that i use as Template for creating Excel files from within my program.

there are named ranges in it that i use to fill it with data.

in the hope that it will be a much faster way i went to OpenXML and now found closedXML, but the first line i wrote

var wb = new XLWorkbook("EAV_VU-Daten_Master.xlsx");

lead to the mentioned error.

any help ? (i could send you the Xlsx to somewhere if you need it to find the error)



Nov 8, 2012 at 2:01 PM

Create an issue and attach the file.