From 79fbeb636ce55d08ab0e95a5776dcbbadc962796 Mon Sep 17 00:00:00 2001
From: Paul Koudelka <106623909+PaulKoudelka@users.noreply.github.com>
Date: Wed, 15 Jul 2026 14:47:01 +0200
Subject: [PATCH] Made file-extensions case insensitive (#858)

---
 app/MindWork AI Studio/Tools/Rust/FileTypes.cs | 2 +-
 runtime/src/file_data.rs                       | 8 ++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/app/MindWork AI Studio/Tools/Rust/FileTypes.cs b/app/MindWork AI Studio/Tools/Rust/FileTypes.cs
index 5f29bc11..f6d982e0 100644
--- a/app/MindWork AI Studio/Tools/Rust/FileTypes.cs	
+++ b/app/MindWork AI Studio/Tools/Rust/FileTypes.cs	
@@ -117,7 +117,7 @@ public static class FileTypes
 
         if (types.Any(t => t.ContainsType(SOURCE_LIKE_FILE_NAMES)))
         { 
-            if (SOURCE_LIKE_FILE_NAMES.FilterExtensions.Contains(fileName))
+            if (SOURCE_LIKE_FILE_NAMES.FilterExtensions.Contains(fileName, StringComparer.OrdinalIgnoreCase))
                 return true;
         }
         
diff --git a/runtime/src/file_data.rs b/runtime/src/file_data.rs
index 43446f46..005ab11b 100644
--- a/runtime/src/file_data.rs
+++ b/runtime/src/file_data.rs
@@ -190,10 +190,14 @@ async fn stream_data(file_path: &str, extract_images: bool) -> Result<ChunkStrea
         },
     };
 
-    let ext = file_path.split('.').next_back().unwrap_or("");
+    let ext = Path::new(file_path)
+        .extension()
+        .and_then(|extension| extension.to_str())
+        .map(str::to_ascii_lowercase)
+        .unwrap_or_default();
     debug!("Extracting data from file: '{file_path}', format: '{fmt:?}', extension: '{ext}'");
 
-    let stream = match ext {
+    let stream = match ext.as_str() {
         DOCX | ODT => {
             let from = if ext == DOCX { "docx" } else { "odt" };
             convert_with_pandoc(file_path, from, TO_MARKDOWN).await?