title: Apache POI org.apache.poi.ss.formula.FormulaParseException
body: <p>I'm using Apache POI and I'm facing an issue when evaluating a formula cell.</p>
  
  <p>This is my code:</p>
  
  <pre><code>XSSFCell cellvalue = sheet.getRow(6).getCell(2);
  if (cellvalue.getCellType() == cellvalue.CELL_TYPE_FORMULA) {
     evaluator.evaluateFormulaCell(cellvalue);
  }
  </code></pre>
  
  <p>The formula:</p>
  
  <pre><code>=C6/Num_Input and Num_Input = F36
  </code></pre>
  
  <p>The issue:</p>
  
  <pre><code>org.apache.poi.ss.formula.FormulaParseException:
  Cell reference expected after sheet name at index 18.
  </code></pre>