Apache OpenOffice Creates Xls Using Wrong Case for Number Format General (#2242)

See issue #2239. Problem is dealt with at the source, by making sure that Reader Xls checks for use of 'GENERAL' rather than 'General'. There doesn't seem to be a reason to test in other places, or to test for other casing variants.

src/PhpSpreadsheet/Reader/Xls.php

@@ -2125,6 +2125,10 @@ class Xls extends BaseReader
             }
 
             $formatString = $string['value'];
+            // Apache Open Office sets wrong case writing to xls - issue 2239
+            if ($formatString === 'GENERAL') {
+                $formatString = NumberFormat::FORMAT_GENERAL;
+            }
             $this->formats[$indexCode] = $formatString;
         }
     }
@@ -2174,7 +2178,7 @@ class Xls extends BaseReader
                 $numberFormat = ['formatCode' => $code];
             } else {
                 // we set the general format code
-                $numberFormat = ['formatCode' => 'General'];
+                $numberFormat = ['formatCode' => NumberFormat::FORMAT_GENERAL];
             }
             $objStyle->getNumberFormat()->setFormatCode($numberFormat['formatCode']);
 

tests/PhpSpreadsheetTests/Reader/Xls/NumberFormatGeneralTest.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheetTests\Reader\Xls;
+
+use PhpOffice\PhpSpreadsheet\Reader\Xls;
+use PhpOffice\PhpSpreadsheetTests\Functional\AbstractFunctional;
+
+class NumberFormatGeneralTest extends AbstractFunctional
+{
+    public function testGeneral(): void
+    {
+        $filename = 'tests/data/Reader/XLS/issue2239.xls';
+        $contents = file_get_contents($filename) ?: '';
+        self::assertStringContainsString('GENERAL', $contents);
+
+        $reader = new Xls();
+        $spreadsheet = $reader->load($filename);
+        $sheet = $spreadsheet->getSheetByName('Blad1');
+        if ($sheet === null) {
+            self::fail('Expected to find sheet Blad1');
+        } else {
+            $array = $sheet->toArray();
+            self::assertSame('€ 2.95', $array[1][3]);
+            self::assertSame(2.95, $sheet->getCell('D2')->getValue());
+            self::assertSame(2.95, $sheet->getCell('D2')->getCalculatedValue());
+            self::assertSame('€ 2.95', $sheet->getCell('D2')->getFormattedValue());
+            self::assertSame(21, $array[1][4]);
+            self::assertSame(21, $sheet->getCell('E2')->getValue());
+            self::assertSame(21, $sheet->getCell('E2')->getCalculatedValue());
+            self::assertSame('21', $sheet->getCell('E2')->getFormattedValue());
+        }
+        $spreadsheet->disconnectWorksheets();
+    }
+}