diff --git a/poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFWorkbook.java b/poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFWorkbook.java
index 04ecbbfb6e..d0c2678ad3 100644
--- a/poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFWorkbook.java
+++ b/poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFWorkbook.java
@@ -1173,7 +1173,7 @@ public final class TestXSSFWorkbook extends BaseTestXWorkbook {
 
     @Test
     void testRightToLeft() throws IOException {
-        try(XSSFWorkbook workbook = openSampleWorkbook("right-to-left.xlsx")){
+        try(XSSFWorkbook workbook = openSampleWorkbook("right-to-left.xlsx")) {
             Sheet sheet = workbook.getSheet("عربى");
 
             Cell A1 = sheet.getRow(0).getCell(0);
@@ -1191,6 +1191,21 @@ public final class TestXSSFWorkbook extends BaseTestXWorkbook {
         }
     }
 
+    @Test
+    void test501RC1Failure() throws Exception {
+        String filename = "0-www-crossref-org.lib.rivier.edu_education-files_suffix-generator.xlsm";
+        try(XSSFWorkbook workbook = openSampleWorkbook(filename)) {
+            for (int i = 0; i < workbook.getNumberOfSheets(); i++) {
+                XSSFSheet sheet = workbook.getSheetAt(i);
+                for (Row row : sheet) {
+                    for (Cell cell : row) {
+                        assertNotNull(cell);
+                    }
+                }
+            }
+        }
+    }
+
     private static void expectFormattedContent(Cell cell, String value) {
         assertEquals(value, new DataFormatter().formatCellValue(cell),
                 "Cell " + ref(cell) + " has wrong formatted content.");
diff --git a/test-data/spreadsheet/0-www-crossref-org.lib.rivier.edu_education-files_suffix-generator.xlsm b/test-data/spreadsheet/0-www-crossref-org.lib.rivier.edu_education-files_suffix-generator.xlsm
new file mode 100644
index 0000000000..bc3154be50
Binary files /dev/null and b/test-data/spreadsheet/0-www-crossref-org.lib.rivier.edu_education-files_suffix-generator.xlsm differ