wip: pause checkpoint — P6 feature complete, gate interrupted (not for merge)

fuzz/fuzz_targets/fuzz_extract_xlsx.rs

@@ -0,0 +1,15 @@
+//! The XLSX extractor on arbitrary bytes (plan P6): a zip or not, a sheet
+//! or not, it is a value or a refusal, never a panic; a cell's number is
+//! read as the decimal string the XML holds.
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+
+fuzz_target!(|data: &[u8]| {
+    let _ = ledger_import::extract::xlsx_text(data);
+    let _ = ledger_import::extract::text_of(
+        data,
+        "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+        "sheet.xlsx",
+    );
+});