Problem with Formula Added an @ when open in Excel

--000000000000eb8b38062e92ab88
Content-Type: text/plain; charset="UTF-8"

I create an project that create one xlsx file.

In this file I have some formulas and in some formulas when I open in Excel
an @ are added inside.

For sample:

The formula that I insert

IF(I2="","",CONCAT(I2,LEFT(T2,1)))

The formula that show when I open in a Excel

=@IF(I2="","",CONCAT(I2,LEFT(T2,1)))

And the Excel dont show the value. I need to remove mannualy the @ to works

this is my code:


String formulaOriginal = coluna.getXlsxColumnFormula();
Cell cell = dataRow.createCell(coluna.getXlsxColumnOrder());
cell.setCellFormula(formula);
cell.setCellStyle(style);


I have anothers formulas in my code for sample:

IF(Q2="Engineering",CLEAN(K2),IF(CLEAN(O2)<>"",O2,IF(P2=M2,"",IF(ISNA(VLOOKUP(P2,''Not
Order Writer''!A:A,1,FALSE)),IF(ISNA(VLOOKUP(P2,''Not Order
Writer''!B:B,1,FALSE)),CLEAN(P2),"Reduce Commission"),""))))

and in this formula the excel DONT put the @

can anyone help me?
tks

--000000000000eb8b38062e92ab88--