diff --git a/poi-ooxml-lite/missing-xsbs.txt b/poi-ooxml-lite/missing-xsbs.txt
index ee55b0f796..0ab947f141 100644
--- a/poi-ooxml-lite/missing-xsbs.txt
+++ b/poi-ooxml-lite/missing-xsbs.txt
@@ -96,6 +96,7 @@ ctwebpublishobjects30d8type
 ctwrapthrough8b4etype
 ctwraptightae95type
 ctwraptopbottom5e13type
+fonts7aa2doctype
 lockedcanvaselement
 polylineelement
 relationships93b3doctype
diff --git a/test-data/spreadsheet/clusterfuzz-testcase-minimized-POIFuzzer-5040805309710336.xlsx b/test-data/spreadsheet/clusterfuzz-testcase-minimized-POIFuzzer-5040805309710336.xlsx
new file mode 100644
index 0000000000..667dea5410
Binary files /dev/null and b/test-data/spreadsheet/clusterfuzz-testcase-minimized-POIFuzzer-5040805309710336.xlsx differ
diff --git a/test-data/spreadsheet/stress.xls b/test-data/spreadsheet/stress.xls
index 9a4e488e7b..1afd350acd 100644
Binary files a/test-data/spreadsheet/stress.xls and b/test-data/spreadsheet/stress.xls differ