diff --git a/core/js/src/main/scala/works/iterative/core/FileSupportPlatformSpecific.scala b/core/js/src/main/scala/works/iterative/core/FileSupportPlatformSpecific.scala
index 858a50f..68f3b8e 100644
--- a/core/js/src/main/scala/works/iterative/core/FileSupportPlatformSpecific.scala
+++ b/core/js/src/main/scala/works/iterative/core/FileSupportPlatformSpecific.scala
@@ -1,6 +1,29 @@
 package works.iterative.core
 
+import zio.*
+import zio.stream.*
+import scala.scalajs.js.typedarray.Int8Array
+
 trait FileSupportPlatformSpecific:
   type FileRepr = org.scalajs.dom.File
 
-  extension (f: FileRepr) def name: String = f.name
+  extension (f: FileRepr)
+    def name: String = f.name
+    def toStream: Stream[Throwable, Byte] =
+      ZStream.unfoldChunkZIO(f.stream().getReader())(reader =>
+        ZIO
+          .fromPromiseJS(reader.read())
+          .map(chunk =>
+            if chunk.done then None
+            else
+              val v = chunk.value
+              Some(
+                (
+                  Chunk.fromArray(
+                    new Int8Array(v.buffer, v.byteOffset, v.length).toArray
+                  ),
+                  reader
+                )
+              )
+          )
+      )