diff --git a/apps/gridcraft-cli/tests/text_to_columns_quotes.rs b/apps/gridcraft-cli/tests/text_to_columns_quotes.rs
new file mode 100644
index 0000000..c35f857
--- /dev/null
+++ b/apps/gridcraft-cli/tests/text_to_columns_quotes.rs
@@ -0,0 +1,26 @@
+use std::process::Command;
+
+#[test]
+fn text_to_columns_preserves_doubled_quotes() {
+    let dir = std::env::temp_dir().join(format!("gridcraft-t2c-{}", std::process::id()));
+    std::fs::create_dir_all(&dir).expect("make temp directory");
+    let script = dir.join("steps.jsonl");
+    std::fs::write(
+        &script,
+        concat!(
+            "{\"command\":\"cell.set\",\"params\":{\"cell\":\"A1\",\"input\":\"\\\"a\\\"\\\"b\\\",c\"}}\n",
+            "{\"command\":\"data.textToColumns\",\"params\":{\"range\":\"A1\",\"delimiters\":[\",\"]}}\n",
+        ),
+    )
+    .expect("write commands");
+    let output = Command::new(env!("CARGO_BIN_EXE_gridcraft-cli"))
+        .args(["run", "--script"])
+        .arg(&script)
+        .args(["--print", "A1:B1", "--csv", "--quiet"])
+        .output()
+        .expect("run Gridcraft CLI");
+    std::fs::remove_file(script).expect("remove script");
+    std::fs::remove_dir(dir).expect("remove temp directory");
+    assert!(output.status.success(), "{}", String::from_utf8_lossy(&output.stderr));
+    assert_eq!(String::from_utf8_lossy(&output.stdout).trim(), "\"a\"\"b\",c");
+}
diff --git a/crates/engine/src/cmd/data.rs b/crates/engine/src/cmd/data.rs
index 8961d87..2de8e84 100644
--- a/crates/engine/src/cmd/data.rs
+++ b/crates/engine/src/cmd/data.rs
@@ -683,9 +683,15 @@ fn split_delimited(text: &str, delims: &[char], consecutive: bool, quote: char)
     let mut cur = String::new();
     let mut in_q = false;
     let mut last_delim = false;
-    for c in text.chars() {
+    let mut chars = text.chars().peekable();
+    while let Some(c) = chars.next() {
         if c == quote {
-            in_q = !in_q;
+            if in_q && chars.peek() == Some(&quote) {
+                cur.push(quote);
+                chars.next();
+            } else {
+                in_q = !in_q;
+            }
             continue;
         }
         if !in_q && delims.contains(&c) {