diff --git a/app/src/main/java/com/mickstarify/zooforzotero/ZoteroStorage/AttachmentStorageManager.kt b/app/src/main/java/com/mickstarify/zooforzotero/ZoteroStorage/AttachmentStorageManager.kt
index 76672241..f035c11b 100644
--- a/app/src/main/java/com/mickstarify/zooforzotero/ZoteroStorage/AttachmentStorageManager.kt
+++ b/app/src/main/java/com/mickstarify/zooforzotero/ZoteroStorage/AttachmentStorageManager.kt
@@ -400,10 +400,13 @@ class AttachmentStorageManager @Inject constructor(
         // if it doesn't, return to the root path, and repeat for the next item in the list.
 
 
-        val itemPath = item.data["path"] ?: ""
+        var itemPath = item.data["path"] ?: ""
+        // do some transformations for windows style paths
+        // e.g C:\\Users\\michael\\file.txt -> C:/Users/michael/file.txt
+        itemPath = itemPath.replace("\\", "/")
         val directories = itemPath.split("/")
         if (storageMode == StorageMode.CUSTOM) {
-            for ((index, path) in directories.withIndex()) {
+            for (index in directories.indices) {
                 val location = preferenceManager.getCustomAttachmentStorageLocation()
                 var documentFile = DocumentFile.fromTreeUri(context, Uri.parse(location))
                 var i = index
@@ -423,7 +426,7 @@ class AttachmentStorageManager @Inject constructor(
             }
         } else if (storageMode == StorageMode.EXTERNAL_CACHE) {
             // logic using File api is much simpler
-            for (i in 0..directories.size){
+            for (i in directories.indices){
                 var path = directories.slice(i..directories.size-1).joinToString("/")
                 if (path.first() == '/'){
                    path = path.slice(1..path.length-1)
diff --git a/app/src/main/java/com/mickstarify/zooforzotero/ZoteroStorage/Database/Item.kt b/app/src/main/java/com/mickstarify/zooforzotero/ZoteroStorage/Database/Item.kt
index d9a96563..4d2f2ec4 100644
--- a/app/src/main/java/com/mickstarify/zooforzotero/ZoteroStorage/Database/Item.kt
+++ b/app/src/main/java/com/mickstarify/zooforzotero/ZoteroStorage/Database/Item.kt
@@ -201,7 +201,12 @@ class Item : Parcelable {
 
         // I probably should have just used file extensions from the beginning...
         if (extension == "UNKNOWN") {
-            return this.data["filename"]?.split(".")?.last() ?: "UNKNOWN"
+            val filename = if(this.data.containsKey("filename")){
+                this.data["filename"]
+            } else {
+                this.data["title"]
+            }
+            return filename?.split(".")?.last() ?: "UNKNOWN"
         }
         return extension
     }