diff --git a/src/PhpSpreadsheet/ReferenceHelper.php b/src/PhpSpreadsheet/ReferenceHelper.php
index f448473fb..c12f6dea9 100644
--- a/src/PhpSpreadsheet/ReferenceHelper.php
+++ b/src/PhpSpreadsheet/ReferenceHelper.php
@@ -15,10 +15,12 @@ class ReferenceHelper
 {
     /**    Constants                */
     /**    Regular Expressions      */
-    const REFHELPER_REGEXP_CELLREF = '((\w*|\'[^!]*\')!)?(?<![:a-z\$])(\$?[a-z]{1,3}\$?\d+)(?=[^:!\d\'])';
-    const REFHELPER_REGEXP_CELLRANGE = '((\w*|\'[^!]*\')!)?(\$?[a-z]{1,3}\$?\d+):(\$?[a-z]{1,3}\$?\d+)';
-    const REFHELPER_REGEXP_ROWRANGE = '((\w*|\'[^!]*\')!)?(\$?\d+):(\$?\d+)';
-    const REFHELPER_REGEXP_COLRANGE = '((\w*|\'[^!]*\')!)?(\$?[a-z]{1,3}):(\$?[a-z]{1,3})';
+    private const SHEETNAME_PART = '((\w*|\'[^!]*\')!)';
+    private const SHEETNAME_PART_WITH_SLASHES = '/' . self::SHEETNAME_PART . '/';
+    const REFHELPER_REGEXP_CELLREF = self::SHEETNAME_PART . '?(?<![:a-z1-9_\.\$])(\$?[a-z]{1,3}\$?\d+)(?=[^:!\d\'])';
+    const REFHELPER_REGEXP_CELLRANGE = self::SHEETNAME_PART . '?(\$?[a-z]{1,3}\$?\d+):(\$?[a-z]{1,3}\$?\d+)';
+    const REFHELPER_REGEXP_ROWRANGE = self::SHEETNAME_PART . '?(\$?\d+):(\$?\d+)';
+    const REFHELPER_REGEXP_COLRANGE = self::SHEETNAME_PART . '?(\$?[a-z]{1,3}):(\$?[a-z]{1,3})';
 
     /**
      * Instance of this class.
@@ -545,6 +547,18 @@ class ReferenceHelper
         $worksheet->garbageCollect();
     }
 
+    private static function matchSheetName(?string $match, string $worksheetName): bool
+    {
+        return $match === null || $match === '' || $match === "'\u{fffc}'" || $match === "'\u{fffb}'" || strcasecmp(trim($match, "'"), $worksheetName) === 0;
+    }
+
+    private static function sheetnameBeforeCells(string $match, string $worksheetName, string $cells): string
+    {
+        $toString = ($match > '') ? "$match!" : '';
+
+        return str_replace(["\u{fffc}", "'\u{fffb}'"], $worksheetName, $toString) . $cells;
+    }
+
     /**
      * Update references within formulas.
      *
@@ -565,6 +579,7 @@ class ReferenceHelper
         bool $includeAbsoluteReferences = false,
         bool $onlyAbsoluteReferences = false
     ): string {
+        $callback = fn (array $matches): string => (strcasecmp(trim($matches[2], "'"), $worksheetName) === 0) ? (($matches[2][0] === "'") ? "'\u{fffc}'!" : "'\u{fffb}'!") : "'\u{fffd}'!";
         if (
             $this->cellReferenceHelper === null
             || $this->cellReferenceHelper->refreshRequired($beforeCellAddress, $numberOfColumns, $numberOfRows)
@@ -582,18 +597,17 @@ class ReferenceHelper
                 $adjustCount = 0;
                 $newCellTokens = $cellTokens = [];
                 //    Search for row ranges (e.g. 'Sheet1'!3:5 or 3:5) with or without $ absolutes (e.g. $3:5)
-                $matchCount = preg_match_all('/' . self::REFHELPER_REGEXP_ROWRANGE . '/mui', ' ' . $formulaBlock . ' ', $matches, PREG_SET_ORDER);
+                $formulaBlockx = ' ' . (preg_replace_callback(self::SHEETNAME_PART_WITH_SLASHES, $callback, $formulaBlock) ?? $formulaBlock) . ' ';
+                $matchCount = preg_match_all('/' . self::REFHELPER_REGEXP_ROWRANGE . '/mui', $formulaBlockx, $matches, PREG_SET_ORDER);
                 if ($matchCount > 0) {
                     foreach ($matches as $match) {
-                        $fromString = ($match[2] > '') ? $match[2] . '!' : '';
-                        $fromString .= $match[3] . ':' . $match[4];
+                        $fromString = self::sheetnameBeforeCells($match[2], $worksheetName, "{$match[3]}:{$match[4]}");
                         $modified3 = substr($this->updateCellReference('$A' . $match[3], $includeAbsoluteReferences, $onlyAbsoluteReferences), 2);
                         $modified4 = substr($this->updateCellReference('$A' . $match[4], $includeAbsoluteReferences, $onlyAbsoluteReferences), 2);
 
                         if ($match[3] . ':' . $match[4] !== $modified3 . ':' . $modified4) {
-                            if (($match[2] == '') || (trim($match[2], "'") == $worksheetName)) {
-                                $toString = ($match[2] > '') ? $match[2] . '!' : '';
-                                $toString .= $modified3 . ':' . $modified4;
+                            if (self::matchSheetName($match[2], $worksheetName)) {
+                                $toString = self::sheetnameBeforeCells($match[2], $worksheetName, "$modified3:$modified4");
                                 //    Max worksheet size is 1,048,576 rows by 16,384 columns in Excel 2007, so our adjustments need to be at least one digit more
                                 $column = 100000;
                                 $row = 10000000 + (int) trim($match[3], '$');
@@ -607,18 +621,17 @@ class ReferenceHelper
                     }
                 }
                 //    Search for column ranges (e.g. 'Sheet1'!C:E or C:E) with or without $ absolutes (e.g. $C:E)
-                $matchCount = preg_match_all('/' . self::REFHELPER_REGEXP_COLRANGE . '/mui', ' ' . $formulaBlock . ' ', $matches, PREG_SET_ORDER);
+                $formulaBlockx = ' ' . (preg_replace_callback(self::SHEETNAME_PART_WITH_SLASHES, $callback, $formulaBlock) ?? $formulaBlock) . ' ';
+                $matchCount = preg_match_all('/' . self::REFHELPER_REGEXP_COLRANGE . '/mui', $formulaBlockx, $matches, PREG_SET_ORDER);
                 if ($matchCount > 0) {
                     foreach ($matches as $match) {
-                        $fromString = ($match[2] > '') ? $match[2] . '!' : '';
-                        $fromString .= $match[3] . ':' . $match[4];
+                        $fromString = self::sheetnameBeforeCells($match[2], $worksheetName, "{$match[3]}:{$match[4]}");
                         $modified3 = substr($this->updateCellReference($match[3] . '$1', $includeAbsoluteReferences, $onlyAbsoluteReferences), 0, -2);
                         $modified4 = substr($this->updateCellReference($match[4] . '$1', $includeAbsoluteReferences, $onlyAbsoluteReferences), 0, -2);
 
                         if ($match[3] . ':' . $match[4] !== $modified3 . ':' . $modified4) {
-                            if (($match[2] == '') || (trim($match[2], "'") == $worksheetName)) {
-                                $toString = ($match[2] > '') ? $match[2] . '!' : '';
-                                $toString .= $modified3 . ':' . $modified4;
+                            if (self::matchSheetName($match[2], $worksheetName)) {
+                                $toString = self::sheetnameBeforeCells($match[2], $worksheetName, "$modified3:$modified4");
                                 //    Max worksheet size is 1,048,576 rows by 16,384 columns in Excel 2007, so our adjustments need to be at least one digit more
                                 $column = Coordinate::columnIndexFromString(trim($match[3], '$')) + 100000;
                                 $row = 10000000;
@@ -632,18 +645,17 @@ class ReferenceHelper
                     }
                 }
                 //    Search for cell ranges (e.g. 'Sheet1'!A3:C5 or A3:C5) with or without $ absolutes (e.g. $A1:C$5)
-                $matchCount = preg_match_all('/' . self::REFHELPER_REGEXP_CELLRANGE . '/mui', ' ' . $formulaBlock . ' ', $matches, PREG_SET_ORDER);
+                $formulaBlockx = ' ' . (preg_replace_callback(self::SHEETNAME_PART_WITH_SLASHES, $callback, "$formulaBlock") ?? "$formulaBlock") . ' ';
+                $matchCount = preg_match_all('/' . self::REFHELPER_REGEXP_CELLRANGE . '/mui', $formulaBlockx, $matches, PREG_SET_ORDER);
                 if ($matchCount > 0) {
                     foreach ($matches as $match) {
-                        $fromString = ($match[2] > '') ? $match[2] . '!' : '';
-                        $fromString .= $match[3] . ':' . $match[4];
+                        $fromString = self::sheetnameBeforeCells($match[2], $worksheetName, "{$match[3]}:{$match[4]}");
                         $modified3 = $this->updateCellReference($match[3], $includeAbsoluteReferences, $onlyAbsoluteReferences);
                         $modified4 = $this->updateCellReference($match[4], $includeAbsoluteReferences, $onlyAbsoluteReferences);
 
                         if ($match[3] . $match[4] !== $modified3 . $modified4) {
-                            if (($match[2] == '') || (trim($match[2], "'") == $worksheetName)) {
-                                $toString = ($match[2] > '') ? $match[2] . '!' : '';
-                                $toString .= $modified3 . ':' . $modified4;
+                            if (self::matchSheetName($match[2], $worksheetName)) {
+                                $toString = self::sheetnameBeforeCells($match[2], $worksheetName, "$modified3:$modified4");
                                 [$column, $row] = Coordinate::coordinateFromString($match[3]);
                                 //    Max worksheet size is 1,048,576 rows by 16,384 columns in Excel 2007, so our adjustments need to be at least one digit more
                                 $column = Coordinate::columnIndexFromString(trim($column, '$')) + 100000;
@@ -658,18 +670,18 @@ class ReferenceHelper
                     }
                 }
                 //    Search for cell references (e.g. 'Sheet1'!A3 or C5) with or without $ absolutes (e.g. $A1 or C$5)
-                $matchCount = preg_match_all('/' . self::REFHELPER_REGEXP_CELLREF . '/mui', ' ' . $formulaBlock . ' ', $matches, PREG_SET_ORDER);
+
+                $formulaBlockx = ' ' . (preg_replace_callback(self::SHEETNAME_PART_WITH_SLASHES, $callback, $formulaBlock) ?? $formulaBlock) . ' ';
+                $matchCount = preg_match_all('/' . self::REFHELPER_REGEXP_CELLREF . '/mui', $formulaBlockx, $matches, PREG_SET_ORDER);
 
                 if ($matchCount > 0) {
                     foreach ($matches as $match) {
-                        $fromString = ($match[2] > '') ? $match[2] . '!' : '';
-                        $fromString .= $match[3];
+                        $fromString = self::sheetnameBeforeCells($match[2], $worksheetName, "{$match[3]}");
 
                         $modified3 = $this->updateCellReference($match[3], $includeAbsoluteReferences, $onlyAbsoluteReferences);
                         if ($match[3] !== $modified3) {
-                            if (($match[2] == '') || (trim($match[2], "'") == $worksheetName)) {
-                                $toString = ($match[2] > '') ? $match[2] . '!' : '';
-                                $toString .= $modified3;
+                            if (self::matchSheetName($match[2], $worksheetName)) {
+                                $toString = self::sheetnameBeforeCells($match[2], $worksheetName, "$modified3");
                                 [$column, $row] = Coordinate::coordinateFromString($match[3]);
                                 $columnAdditionalIndex = $column[0] === '$' ? 1 : 0;
                                 $rowAdditionalIndex = $row[0] === '$' ? 1 : 0;
diff --git a/tests/PhpSpreadsheetTests/ReferenceHelper4Test.php b/tests/PhpSpreadsheetTests/ReferenceHelper4Test.php
new file mode 100644
index 000000000..c0dc75611
--- /dev/null
+++ b/tests/PhpSpreadsheetTests/ReferenceHelper4Test.php
@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpOffice\PhpSpreadsheetTests;
+
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PHPUnit\Framework\TestCase;
+
+class ReferenceHelper4Test extends TestCase
+{
+    /**
+     * @dataProvider dataProvider
+     */
+    public function testIssue3907(string $expectedResult, string $settingsTitle, string $formula, string $dataTitle = 'DATA'): void
+    {
+        $spreadsheet = new Spreadsheet();
+        $dataSheet = $spreadsheet->getActiveSheet();
+        $dataSheet->setTitle($dataTitle);
+        $settingsSheet = $spreadsheet->createSheet();
+        $settingsSheet->setTitle($settingsTitle);
+        $settingsSheet->getCell('A1')->setValue(10);
+        $settingsSheet->getCell('B1')->setValue(20);
+        $dataSheet->getCell('A5')->setValue($formula);
+        $dataSheet->getCell('A2')->setValue(1);
+        $dataSheet->insertNewColumnBefore('A');
+        self::assertSame($expectedResult, $dataSheet->getCell('B5')->getValue());
+        $spreadsheet->disconnectWorksheets();
+    }
+
+    public static function dataProvider(): array
+    {
+        return [
+            ["=SUM(B2, 'F1 (SETTINGS)'!A1:B1)", 'F1 (SETTINGS)', "=SUM(A2, 'F1 (SETTINGS)'!A1:B1)"],
+            ["=SUM(B2, 'x F1 (SETTINGS)'!A1:B1)", 'x F1 (SETTINGS)', "=SUM(A2, 'x F1 (SETTINGS)'!A1:B1)"],
+            ["=SUM(B2, 'DATA'!B1)", 'F1 (SETTINGS)', "=SUM(A2, 'DATA'!A1)"],
+            ["=SUM(B2, 'DATA'!C1)", 'F1 (SETTINGS)', "=SUM(A2, 'data'!B1)"],
+            ['=SUM(B2, DATA!D1)', 'F1 (SETTINGS)', '=SUM(A2, data!C1)'],
+            ["=SUM(B2, 'DATA'!B1:C1)", 'F1 (SETTINGS)', "=SUM(A2, 'Data'!A1:B1)"],
+            ['=SUM(B2, DATA!B1:C1)', 'F1 (SETTINGS)', '=SUM(A2, DAta!A1:B1)'],
+            ["=SUM(B2, 'F1 Data'!C1)", 'F1 (SETTINGS)', "=SUM(A2, 'F1 Data'!B1)", 'F1 Data'],
+            ["=SUM(B2, 'x F1 Data'!C1)", 'F1 (SETTINGS)', "=SUM(A2, 'x F1 Data'!B1)", 'x F1 Data'],
+            ["=SUM(B2, 'x F1 Data'!C1)", 'F1 (SETTINGS)', "=SUM(A2, 'x F1 Data'!B1)", 'x F1 Data'],
+            ["=SUM(B2, 'x F1 Data'!C1:D2)", 'F1 (SETTINGS)', "=SUM(A2, 'x F1 Data'!B1:C2)", 'x F1 Data'],
+            ['=SUM(B2, definedname1A1)', 'F1 (SETTINGS)', '=SUM(A2, definedname1A1)', 'x F1 Data'],
+        ];
+    }
+}