diff --git a/src/PhpSpreadsheet/Cell/Cell.php b/src/PhpSpreadsheet/Cell/Cell.php
index b53d1d1e0..8cf71f9d9 100644
--- a/src/PhpSpreadsheet/Cell/Cell.php
+++ b/src/PhpSpreadsheet/Cell/Cell.php
@@ -278,7 +278,14 @@ class Cell implements Stringable
             case DataType::TYPE_INLINE:
                 // Rich text
                 $value2 = StringHelper::convertToString($value, true);
-                $this->value = DataType::checkString(($value instanceof RichText) ? $value : $value2);
+                // Cells?->Worksheet?->Spreadsheet
+                $binder = $this->parent?->getParent()?->getParent()?->getValueBinder();
+                $preserveCr = false;
+                if ($binder !== null && method_exists($binder, 'getPreserveCr')) {
+                    /** @var bool */
+                    $preserveCr = $binder->getPreserveCr();
+                }
+                $this->value = DataType::checkString(($value instanceof RichText) ? $value : $value2, $preserveCr);
 
                 break;
             case DataType::TYPE_NUMERIC:
diff --git a/src/PhpSpreadsheet/Cell/DataType.php b/src/PhpSpreadsheet/Cell/DataType.php
index 39969d37a..774a57b23 100644
--- a/src/PhpSpreadsheet/Cell/DataType.php
+++ b/src/PhpSpreadsheet/Cell/DataType.php
@@ -53,7 +53,7 @@ class DataType
      *
      * @return RichText|string Sanitized value
      */
-    public static function checkString(null|RichText|string $textValue): RichText|string
+    public static function checkString(null|RichText|string $textValue, bool $preserveCr = false): RichText|string
     {
         if ($textValue instanceof RichText) {
             // TODO: Sanitize Rich-Text string (max. character count is 32,767)
@@ -64,7 +64,9 @@ class DataType
         $textValue = StringHelper::substring((string) $textValue, 0, self::MAX_STRING_LENGTH);
 
         // we require that newline is represented as "\n" in core, not as "\r\n" or "\r"
-        $textValue = str_replace(["\r\n", "\r"], "\n", $textValue);
+        if (!$preserveCr) {
+            $textValue = str_replace(["\r\n", "\r"], "\n", $textValue);
+        }
 
         return $textValue;
     }
diff --git a/src/PhpSpreadsheet/Cell/DefaultValueBinder.php b/src/PhpSpreadsheet/Cell/DefaultValueBinder.php
index 10c5c93c5..0d7f286f7 100644
--- a/src/PhpSpreadsheet/Cell/DefaultValueBinder.php
+++ b/src/PhpSpreadsheet/Cell/DefaultValueBinder.php
@@ -108,4 +108,18 @@ class DefaultValueBinder implements IValueBinder
 
         return DataType::TYPE_STRING;
     }
+
+    protected bool $preserveCr = false;
+
+    public function getPreserveCr(): bool
+    {
+        return $this->preserveCr;
+    }
+
+    public function setPreserveCr(bool $preserveCr): self
+    {
+        $this->preserveCr = $preserveCr;
+
+        return $this;
+    }
 }
diff --git a/src/PhpSpreadsheet/Reader/Xls/LoadSpreadsheet.php b/src/PhpSpreadsheet/Reader/Xls/LoadSpreadsheet.php
index 60fc5a125..fb28f398f 100644
--- a/src/PhpSpreadsheet/Reader/Xls/LoadSpreadsheet.php
+++ b/src/PhpSpreadsheet/Reader/Xls/LoadSpreadsheet.php
@@ -27,7 +27,7 @@ class LoadSpreadsheet extends Xls
 
         // Initialisations
         $xls->spreadsheet = $this->newSpreadsheet();
-        $xls->spreadsheet->setValueBinder($this->valueBinder);
+        $xls->spreadsheet->setValueBinder($xls->valueBinder);
         $xls->spreadsheet->removeSheetByIndex(0); // remove 1st sheet
         if (!$xls->readDataOnly) {
             $xls->spreadsheet->removeCellStyleXfByIndex(0); // remove the default style
diff --git a/src/PhpSpreadsheet/Shared/StringHelper.php b/src/PhpSpreadsheet/Shared/StringHelper.php
index 045c7b472..323aff408 100644
--- a/src/PhpSpreadsheet/Shared/StringHelper.php
+++ b/src/PhpSpreadsheet/Shared/StringHelper.php
@@ -9,19 +9,236 @@ use Stringable;
 
 class StringHelper
 {
-    /**
-     * Control characters array.
-     *
-     * @var string[]
-     */
-    private static array $controlCharacters = [];
+    private const CONTROL_CHARACTERS_KEYS = [
+        "\x00",
+        "\x01",
+        "\x02",
+        "\x03",
+        "\x04",
+        "\x05",
+        "\x06",
+        "\x07",
+        "\x08",
+        "\x09",
+        "\x0a",
+        "\x0b",
+        "\x0c",
+        "\x0d",
+        "\x0e",
+        "\x0f",
+        "\x10",
+        "\x11",
+        "\x12",
+        "\x13",
+        "\x14",
+        "\x15",
+        "\x16",
+        "\x17",
+        "\x18",
+        "\x19",
+        "\x1a",
+        "\x1b",
+        "\x1c",
+        "\x1d",
+        "\x1e",
+        "\x1f",
+    ];
+    private const CONTROL_CHARACTERS_VALUES = [
+        '_x0000_',
+        '_x0001_',
+        '_x0002_',
+        '_x0003_',
+        '_x0004_',
+        '_x0005_',
+        '_x0006_',
+        '_x0007_',
+        '_x0008_',
+        '_x0009_',
+        '_x000A_',
+        '_x000B_',
+        '_x000C_',
+        '_x000D_',
+        '_x000E_',
+        '_x000F_',
+        '_x0010_',
+        '_x0011_',
+        '_x0012_',
+        '_x0013_',
+        '_x0014_',
+        '_x0015_',
+        '_x0016_',
+        '_x0017_',
+        '_x0018_',
+        '_x0019_',
+        '_x001A_',
+        '_x001B_',
+        '_x001C_',
+        '_x001D_',
+        '_x001E_',
+        '_x001F_',
+    ];
 
     /**
      * SYLK Characters array.
-     *
-     * @var string[]
      */
-    private static array $SYLKCharacters = [];
+    private const SYLK_CHARACTERS = [
+        "\x1B 0" => "\x00",
+        "\x1B 1" => "\x01",
+        "\x1B 2" => "\x02",
+        "\x1B 3" => "\x03",
+        "\x1B 4" => "\x04",
+        "\x1B 5" => "\x05",
+        "\x1B 6" => "\x06",
+        "\x1B 7" => "\x07",
+        "\x1B 8" => "\x08",
+        "\x1B 9" => "\x09",
+        "\x1B :" => "\x0a",
+        "\x1B ;" => "\x0b",
+        "\x1B <" => "\x0c",
+        "\x1B =" => "\x0d",
+        "\x1B >" => "\x0e",
+        "\x1B ?" => "\x0f",
+        "\x1B!0" => "\x10",
+        "\x1B!1" => "\x11",
+        "\x1B!2" => "\x12",
+        "\x1B!3" => "\x13",
+        "\x1B!4" => "\x14",
+        "\x1B!5" => "\x15",
+        "\x1B!6" => "\x16",
+        "\x1B!7" => "\x17",
+        "\x1B!8" => "\x18",
+        "\x1B!9" => "\x19",
+        "\x1B!:" => "\x1a",
+        "\x1B!;" => "\x1b",
+        "\x1B!<" => "\x1c",
+        "\x1B!=" => "\x1d",
+        "\x1B!>" => "\x1e",
+        "\x1B!?" => "\x1f",
+        "\x1B'?" => "\x7f",
+        "\x1B(0" => '€', // 128 in CP1252
+        "\x1B(2" => '‚', // 130 in CP1252
+        "\x1B(3" => 'ƒ', // 131 in CP1252
+        "\x1B(4" => '„', // 132 in CP1252
+        "\x1B(5" => '…', // 133 in CP1252
+        "\x1B(6" => '†', // 134 in CP1252
+        "\x1B(7" => '‡', // 135 in CP1252
+        "\x1B(8" => 'ˆ', // 136 in CP1252
+        "\x1B(9" => '‰', // 137 in CP1252
+        "\x1B(:" => 'Š', // 138 in CP1252
+        "\x1B(;" => '‹', // 139 in CP1252
+        "\x1BNj" => 'Œ', // 140 in CP1252
+        "\x1B(>" => 'Ž', // 142 in CP1252
+        "\x1B)1" => '‘', // 145 in CP1252
+        "\x1B)2" => '’', // 146 in CP1252
+        "\x1B)3" => '“', // 147 in CP1252
+        "\x1B)4" => '”', // 148 in CP1252
+        "\x1B)5" => '•', // 149 in CP1252
+        "\x1B)6" => '–', // 150 in CP1252
+        "\x1B)7" => '—', // 151 in CP1252
+        "\x1B)8" => '˜', // 152 in CP1252
+        "\x1B)9" => '™', // 153 in CP1252
+        "\x1B):" => 'š', // 154 in CP1252
+        "\x1B);" => '›', // 155 in CP1252
+        "\x1BNz" => 'œ', // 156 in CP1252
+        "\x1B)>" => 'ž', // 158 in CP1252
+        "\x1B)?" => 'Ÿ', // 159 in CP1252
+        "\x1B*0" => ' ', // 160 in CP1252
+        "\x1BN!" => '¡', // 161 in CP1252
+        "\x1BN\"" => '¢', // 162 in CP1252
+        "\x1BN#" => '£', // 163 in CP1252
+        "\x1BN(" => '¤', // 164 in CP1252
+        "\x1BN%" => '¥', // 165 in CP1252
+        "\x1B*6" => '¦', // 166 in CP1252
+        "\x1BN'" => '§', // 167 in CP1252
+        "\x1BNH " => '¨', // 168 in CP1252
+        "\x1BNS" => '©', // 169 in CP1252
+        "\x1BNc" => 'ª', // 170 in CP1252
+        "\x1BN+" => '«', // 171 in CP1252
+        "\x1B*<" => '¬', // 172 in CP1252
+        "\x1B*=" => '­', // 173 in CP1252
+        "\x1BNR" => '®', // 174 in CP1252
+        "\x1B*?" => '¯', // 175 in CP1252
+        "\x1BN0" => '°', // 176 in CP1252
+        "\x1BN1" => '±', // 177 in CP1252
+        "\x1BN2" => '²', // 178 in CP1252
+        "\x1BN3" => '³', // 179 in CP1252
+        "\x1BNB " => '´', // 180 in CP1252
+        "\x1BN5" => 'µ', // 181 in CP1252
+        "\x1BN6" => '¶', // 182 in CP1252
+        "\x1BN7" => '·', // 183 in CP1252
+        "\x1B+8" => '¸', // 184 in CP1252
+        "\x1BNQ" => '¹', // 185 in CP1252
+        "\x1BNk" => 'º', // 186 in CP1252
+        "\x1BN;" => '»', // 187 in CP1252
+        "\x1BN<" => '¼', // 188 in CP1252
+        "\x1BN=" => '½', // 189 in CP1252
+        "\x1BN>" => '¾', // 190 in CP1252
+        "\x1BN?" => '¿', // 191 in CP1252
+        "\x1BNAA" => 'À', // 192 in CP1252
+        "\x1BNBA" => 'Á', // 193 in CP1252
+        "\x1BNCA" => 'Â', // 194 in CP1252
+        "\x1BNDA" => 'Ã', // 195 in CP1252
+        "\x1BNHA" => 'Ä', // 196 in CP1252
+        "\x1BNJA" => 'Å', // 197 in CP1252
+        "\x1BNa" => 'Æ', // 198 in CP1252
+        "\x1BNKC" => 'Ç', // 199 in CP1252
+        "\x1BNAE" => 'È', // 200 in CP1252
+        "\x1BNBE" => 'É', // 201 in CP1252
+        "\x1BNCE" => 'Ê', // 202 in CP1252
+        "\x1BNHE" => 'Ë', // 203 in CP1252
+        "\x1BNAI" => 'Ì', // 204 in CP1252
+        "\x1BNBI" => 'Í', // 205 in CP1252
+        "\x1BNCI" => 'Î', // 206 in CP1252
+        "\x1BNHI" => 'Ï', // 207 in CP1252
+        "\x1BNb" => 'Ð', // 208 in CP1252
+        "\x1BNDN" => 'Ñ', // 209 in CP1252
+        "\x1BNAO" => 'Ò', // 210 in CP1252
+        "\x1BNBO" => 'Ó', // 211 in CP1252
+        "\x1BNCO" => 'Ô', // 212 in CP1252
+        "\x1BNDO" => 'Õ', // 213 in CP1252
+        "\x1BNHO" => 'Ö', // 214 in CP1252
+        "\x1B-7" => '×', // 215 in CP1252
+        "\x1BNi" => 'Ø', // 216 in CP1252
+        "\x1BNAU" => 'Ù', // 217 in CP1252
+        "\x1BNBU" => 'Ú', // 218 in CP1252
+        "\x1BNCU" => 'Û', // 219 in CP1252
+        "\x1BNHU" => 'Ü', // 220 in CP1252
+        "\x1B-=" => 'Ý', // 221 in CP1252
+        "\x1BNl" => 'Þ', // 222 in CP1252
+        "\x1BN{" => 'ß', // 223 in CP1252
+        "\x1BNAa" => 'à', // 224 in CP1252
+        "\x1BNBa" => 'á', // 225 in CP1252
+        "\x1BNCa" => 'â', // 226 in CP1252
+        "\x1BNDa" => 'ã', // 227 in CP1252
+        "\x1BNHa" => 'ä', // 228 in CP1252
+        "\x1BNJa" => 'å', // 229 in CP1252
+        "\x1BNq" => 'æ', // 230 in CP1252
+        "\x1BNKc" => 'ç', // 231 in CP1252
+        "\x1BNAe" => 'è', // 232 in CP1252
+        "\x1BNBe" => 'é', // 233 in CP1252
+        "\x1BNCe" => 'ê', // 234 in CP1252
+        "\x1BNHe" => 'ë', // 235 in CP1252
+        "\x1BNAi" => 'ì', // 236 in CP1252
+        "\x1BNBi" => 'í', // 237 in CP1252
+        "\x1BNCi" => 'î', // 238 in CP1252
+        "\x1BNHi" => 'ï', // 239 in CP1252
+        "\x1BNs" => 'ð', // 240 in CP1252
+        "\x1BNDn" => 'ñ', // 241 in CP1252
+        "\x1BNAo" => 'ò', // 242 in CP1252
+        "\x1BNBo" => 'ó', // 243 in CP1252
+        "\x1BNCo" => 'ô', // 244 in CP1252
+        "\x1BNDo" => 'õ', // 245 in CP1252
+        "\x1BNHo" => 'ö', // 246 in CP1252
+        "\x1B/7" => '÷', // 247 in CP1252
+        "\x1BNy" => 'ø', // 248 in CP1252
+        "\x1BNAu" => 'ù', // 249 in CP1252
+        "\x1BNBu" => 'ú', // 250 in CP1252
+        "\x1BNCu" => 'û', // 251 in CP1252
+        "\x1BNHu" => 'ü', // 252 in CP1252
+        "\x1B/=" => 'ý', // 253 in CP1252
+        "\x1BN|" => 'þ', // 254 in CP1252
+        "\x1BNHy" => 'ÿ', // 255 in CP1252
+    ];
 
     /**
      * Decimal separator.
@@ -48,185 +265,6 @@ class StringHelper
      */
     private static string $iconvOptions = '//IGNORE//TRANSLIT';
 
-    /**
-     * Build control characters array.
-     */
-    private static function buildControlCharacters(): void
-    {
-        for ($i = 0; $i <= 31; ++$i) {
-            if ($i != 9 && $i != 10 && $i != 13) {
-                $find = '_x' . sprintf('%04s', strtoupper(dechex($i))) . '_';
-                $replace = chr($i);
-                self::$controlCharacters[$find] = $replace;
-            }
-        }
-    }
-
-    /**
-     * Build SYLK characters array.
-     */
-    private static function buildSYLKCharacters(): void
-    {
-        self::$SYLKCharacters = [
-            "\x1B 0" => chr(0),
-            "\x1B 1" => chr(1),
-            "\x1B 2" => chr(2),
-            "\x1B 3" => chr(3),
-            "\x1B 4" => chr(4),
-            "\x1B 5" => chr(5),
-            "\x1B 6" => chr(6),
-            "\x1B 7" => chr(7),
-            "\x1B 8" => chr(8),
-            "\x1B 9" => chr(9),
-            "\x1B :" => chr(10),
-            "\x1B ;" => chr(11),
-            "\x1B <" => chr(12),
-            "\x1B =" => chr(13),
-            "\x1B >" => chr(14),
-            "\x1B ?" => chr(15),
-            "\x1B!0" => chr(16),
-            "\x1B!1" => chr(17),
-            "\x1B!2" => chr(18),
-            "\x1B!3" => chr(19),
-            "\x1B!4" => chr(20),
-            "\x1B!5" => chr(21),
-            "\x1B!6" => chr(22),
-            "\x1B!7" => chr(23),
-            "\x1B!8" => chr(24),
-            "\x1B!9" => chr(25),
-            "\x1B!:" => chr(26),
-            "\x1B!;" => chr(27),
-            "\x1B!<" => chr(28),
-            "\x1B!=" => chr(29),
-            "\x1B!>" => chr(30),
-            "\x1B!?" => chr(31),
-            "\x1B'?" => chr(127),
-            "\x1B(0" => '€', // 128 in CP1252
-            "\x1B(2" => '‚', // 130 in CP1252
-            "\x1B(3" => 'ƒ', // 131 in CP1252
-            "\x1B(4" => '„', // 132 in CP1252
-            "\x1B(5" => '…', // 133 in CP1252
-            "\x1B(6" => '†', // 134 in CP1252
-            "\x1B(7" => '‡', // 135 in CP1252
-            "\x1B(8" => 'ˆ', // 136 in CP1252
-            "\x1B(9" => '‰', // 137 in CP1252
-            "\x1B(:" => 'Š', // 138 in CP1252
-            "\x1B(;" => '‹', // 139 in CP1252
-            "\x1BNj" => 'Œ', // 140 in CP1252
-            "\x1B(>" => 'Ž', // 142 in CP1252
-            "\x1B)1" => '‘', // 145 in CP1252
-            "\x1B)2" => '’', // 146 in CP1252
-            "\x1B)3" => '“', // 147 in CP1252
-            "\x1B)4" => '”', // 148 in CP1252
-            "\x1B)5" => '•', // 149 in CP1252
-            "\x1B)6" => '–', // 150 in CP1252
-            "\x1B)7" => '—', // 151 in CP1252
-            "\x1B)8" => '˜', // 152 in CP1252
-            "\x1B)9" => '™', // 153 in CP1252
-            "\x1B):" => 'š', // 154 in CP1252
-            "\x1B);" => '›', // 155 in CP1252
-            "\x1BNz" => 'œ', // 156 in CP1252
-            "\x1B)>" => 'ž', // 158 in CP1252
-            "\x1B)?" => 'Ÿ', // 159 in CP1252
-            "\x1B*0" => ' ', // 160 in CP1252
-            "\x1BN!" => '¡', // 161 in CP1252
-            "\x1BN\"" => '¢', // 162 in CP1252
-            "\x1BN#" => '£', // 163 in CP1252
-            "\x1BN(" => '¤', // 164 in CP1252
-            "\x1BN%" => '¥', // 165 in CP1252
-            "\x1B*6" => '¦', // 166 in CP1252
-            "\x1BN'" => '§', // 167 in CP1252
-            "\x1BNH " => '¨', // 168 in CP1252
-            "\x1BNS" => '©', // 169 in CP1252
-            "\x1BNc" => 'ª', // 170 in CP1252
-            "\x1BN+" => '«', // 171 in CP1252
-            "\x1B*<" => '¬', // 172 in CP1252
-            "\x1B*=" => '­', // 173 in CP1252
-            "\x1BNR" => '®', // 174 in CP1252
-            "\x1B*?" => '¯', // 175 in CP1252
-            "\x1BN0" => '°', // 176 in CP1252
-            "\x1BN1" => '±', // 177 in CP1252
-            "\x1BN2" => '²', // 178 in CP1252
-            "\x1BN3" => '³', // 179 in CP1252
-            "\x1BNB " => '´', // 180 in CP1252
-            "\x1BN5" => 'µ', // 181 in CP1252
-            "\x1BN6" => '¶', // 182 in CP1252
-            "\x1BN7" => '·', // 183 in CP1252
-            "\x1B+8" => '¸', // 184 in CP1252
-            "\x1BNQ" => '¹', // 185 in CP1252
-            "\x1BNk" => 'º', // 186 in CP1252
-            "\x1BN;" => '»', // 187 in CP1252
-            "\x1BN<" => '¼', // 188 in CP1252
-            "\x1BN=" => '½', // 189 in CP1252
-            "\x1BN>" => '¾', // 190 in CP1252
-            "\x1BN?" => '¿', // 191 in CP1252
-            "\x1BNAA" => 'À', // 192 in CP1252
-            "\x1BNBA" => 'Á', // 193 in CP1252
-            "\x1BNCA" => 'Â', // 194 in CP1252
-            "\x1BNDA" => 'Ã', // 195 in CP1252
-            "\x1BNHA" => 'Ä', // 196 in CP1252
-            "\x1BNJA" => 'Å', // 197 in CP1252
-            "\x1BNa" => 'Æ', // 198 in CP1252
-            "\x1BNKC" => 'Ç', // 199 in CP1252
-            "\x1BNAE" => 'È', // 200 in CP1252
-            "\x1BNBE" => 'É', // 201 in CP1252
-            "\x1BNCE" => 'Ê', // 202 in CP1252
-            "\x1BNHE" => 'Ë', // 203 in CP1252
-            "\x1BNAI" => 'Ì', // 204 in CP1252
-            "\x1BNBI" => 'Í', // 205 in CP1252
-            "\x1BNCI" => 'Î', // 206 in CP1252
-            "\x1BNHI" => 'Ï', // 207 in CP1252
-            "\x1BNb" => 'Ð', // 208 in CP1252
-            "\x1BNDN" => 'Ñ', // 209 in CP1252
-            "\x1BNAO" => 'Ò', // 210 in CP1252
-            "\x1BNBO" => 'Ó', // 211 in CP1252
-            "\x1BNCO" => 'Ô', // 212 in CP1252
-            "\x1BNDO" => 'Õ', // 213 in CP1252
-            "\x1BNHO" => 'Ö', // 214 in CP1252
-            "\x1B-7" => '×', // 215 in CP1252
-            "\x1BNi" => 'Ø', // 216 in CP1252
-            "\x1BNAU" => 'Ù', // 217 in CP1252
-            "\x1BNBU" => 'Ú', // 218 in CP1252
-            "\x1BNCU" => 'Û', // 219 in CP1252
-            "\x1BNHU" => 'Ü', // 220 in CP1252
-            "\x1B-=" => 'Ý', // 221 in CP1252
-            "\x1BNl" => 'Þ', // 222 in CP1252
-            "\x1BN{" => 'ß', // 223 in CP1252
-            "\x1BNAa" => 'à', // 224 in CP1252
-            "\x1BNBa" => 'á', // 225 in CP1252
-            "\x1BNCa" => 'â', // 226 in CP1252
-            "\x1BNDa" => 'ã', // 227 in CP1252
-            "\x1BNHa" => 'ä', // 228 in CP1252
-            "\x1BNJa" => 'å', // 229 in CP1252
-            "\x1BNq" => 'æ', // 230 in CP1252
-            "\x1BNKc" => 'ç', // 231 in CP1252
-            "\x1BNAe" => 'è', // 232 in CP1252
-            "\x1BNBe" => 'é', // 233 in CP1252
-            "\x1BNCe" => 'ê', // 234 in CP1252
-            "\x1BNHe" => 'ë', // 235 in CP1252
-            "\x1BNAi" => 'ì', // 236 in CP1252
-            "\x1BNBi" => 'í', // 237 in CP1252
-            "\x1BNCi" => 'î', // 238 in CP1252
-            "\x1BNHi" => 'ï', // 239 in CP1252
-            "\x1BNs" => 'ð', // 240 in CP1252
-            "\x1BNDn" => 'ñ', // 241 in CP1252
-            "\x1BNAo" => 'ò', // 242 in CP1252
-            "\x1BNBo" => 'ó', // 243 in CP1252
-            "\x1BNCo" => 'ô', // 244 in CP1252
-            "\x1BNDo" => 'õ', // 245 in CP1252
-            "\x1BNHo" => 'ö', // 246 in CP1252
-            "\x1B/7" => '÷', // 247 in CP1252
-            "\x1BNy" => 'ø', // 248 in CP1252
-            "\x1BNAu" => 'ù', // 249 in CP1252
-            "\x1BNBu" => 'ú', // 250 in CP1252
-            "\x1BNCu" => 'û', // 251 in CP1252
-            "\x1BNHu" => 'ü', // 252 in CP1252
-            "\x1B/=" => 'ý', // 253 in CP1252
-            "\x1BN|" => 'þ', // 254 in CP1252
-            "\x1BNHy" => 'ÿ', // 255 in CP1252
-        ];
-    }
-
     /**
      * Get whether iconv extension is available.
      */
@@ -258,17 +296,6 @@ class StringHelper
         return self::$isIconvEnabled;
     }
 
-    private static function buildCharacterSets(): void
-    {
-        if (empty(self::$controlCharacters)) {
-            self::buildControlCharacters();
-        }
-
-        if (empty(self::$SYLKCharacters)) {
-            self::buildSYLKCharacters();
-        }
-    }
-
     /**
      * Convert from OpenXML escaped control character to PHP control character.
      *
@@ -284,9 +311,7 @@ class StringHelper
      */
     public static function controlCharacterOOXML2PHP(string $textValue): string
     {
-        self::buildCharacterSets();
-
-        return str_replace(array_keys(self::$controlCharacters), array_values(self::$controlCharacters), $textValue);
+        return str_replace(self::CONTROL_CHARACTERS_VALUES, self::CONTROL_CHARACTERS_KEYS, $textValue);
     }
 
     /**
@@ -304,9 +329,7 @@ class StringHelper
      */
     public static function controlCharacterPHP2OOXML(string $textValue): string
     {
-        self::buildCharacterSets();
-
-        return str_replace(array_values(self::$controlCharacters), array_keys(self::$controlCharacters), $textValue);
+        return str_replace(self::CONTROL_CHARACTERS_KEYS, self::CONTROL_CHARACTERS_VALUES, $textValue);
     }
 
     /**
@@ -619,14 +642,12 @@ class StringHelper
      */
     public static function SYLKtoUTF8(string $textValue): string
     {
-        self::buildCharacterSets();
-
         // If there is no escape character in the string there is nothing to do
-        if (!str_contains($textValue, '')) {
+        if (!str_contains($textValue, "\x1b")) {
             return $textValue;
         }
 
-        foreach (self::$SYLKCharacters as $k => $v) {
+        foreach (self::SYLK_CHARACTERS as $k => $v) {
             $textValue = str_replace($k, $v, $textValue);
         }
 
diff --git a/tests/PhpSpreadsheetTests/Shared/Issue347Test.php b/tests/PhpSpreadsheetTests/Shared/Issue347Test.php
new file mode 100644
index 000000000..c4e7707b6
--- /dev/null
+++ b/tests/PhpSpreadsheetTests/Shared/Issue347Test.php
@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpOffice\PhpSpreadsheetTests\Shared;
+
+use PhpOffice\PhpSpreadsheet\Cell\DefaultValueBinder;
+use PhpOffice\PhpSpreadsheet\Reader\BaseReader;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheetTests\Functional\AbstractFunctional;
+use PHPUnit\Framework\Attributes\DataProvider;
+
+class Issue347Test extends AbstractFunctional
+{
+    public function readerPreserveCr(BaseReader $reader): void
+    {
+        $binder = new DefaultValueBinder();
+        $binder->setPreserveCr(true);
+        $reader->setValueBinder($binder);
+    }
+
+    #[DataProvider('providerType')]
+    public function testPreserveCr(string $format): void
+    {
+        $s1 = "AB\r\nC\tD";
+        $spreadsheet = new Spreadsheet();
+        $binder = new DefaultValueBinder();
+        $binder->setPreserveCr(true);
+        $spreadsheet->setValueBinder($binder);
+        $sheet = $spreadsheet->getActiveSheet();
+        $sheet->getCell('A1')->setValue($s1);
+        $reloadedSpreadsheet = $this->writeAndReload($spreadsheet, $format, readerCustomizer: $this->readerPreserveCr(...));
+        $spreadsheet->disconnectWorksheets();
+        $rsheet = $reloadedSpreadsheet->getActiveSheet();
+        $s2 = $rsheet->getCell('A1')->getValue();
+        self::assertSame($s1, $s2);
+        $reloadedSpreadsheet->disconnectWorksheets();
+    }
+
+    #[DataProvider('providerType')]
+    public function testNoPreserveCr(string $format): void
+    {
+        $s1 = "AB\r\nC\tD";
+        $spreadsheet = new Spreadsheet();
+        $sheet = $spreadsheet->getActiveSheet();
+        $sheet->getCell('A1')->setValue($s1);
+        $reloadedSpreadsheet = $this->writeAndReload($spreadsheet, $format);
+        $spreadsheet->disconnectWorksheets();
+        $rsheet = $reloadedSpreadsheet->getActiveSheet();
+        $s2 = $rsheet->getCell('A1')->getValue();
+        self::assertNotEquals($s1, $s2);
+        self::assertSame("AB\nC\tD", $s2);
+        $reloadedSpreadsheet->disconnectWorksheets();
+    }
+
+    public static function providerType(): array
+    {
+        return [['Xls'], ['Xlsx'], ['Ods']];
+    }
+}