Excel Interop C# copyRange without shifting -


i'm trying copy columns (with formulas , formats) in excel document 1 zone another. code below thing when open document see new columns pasted (old columns supposed rewritten shifted right). problem needed paste these columns on existing places without shifting

        int lastcol = 15;          string cc1 = colnumtoletters(lastcol - 3);         string cc2 = colnumtoletters(lastcol);         string ci1 = colnumtoletters(lastcol + 1);         string ci2 = colnumtoletters(lastcol + 4);          excel.range copyrange = sheetpsd.range[cc1 + ":" + cc2];         excel.range insertrange = sheetpsd.range[ci1 + ":" + ci2];          insertrange.insert(copyrange.copy());

insertrange.pastespecial(copyrange.copy());


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