diff --git a/api-reports/2_12.txt b/api-reports/2_12.txt
index 98edbd087..9a4935c94 100644
--- a/api-reports/2_12.txt
+++ b/api-reports/2_12.txt
@@ -373,7 +373,7 @@ Blob[JC] def stream(): ReadableStream[Uint8Array]
 Blob[JC] def text(): js.Promise[String]
 Blob[JC] def `type`: String
 Blob[JO]
-BlobPropertyBag[JT] var endings: js.UndefOr[String]
+BlobPropertyBag[JT] var endings: js.UndefOr[EndingType]
 BlobPropertyBag[JT] var `type`: js.UndefOr[String]
 BlobPropertyBag[SO] def apply(`type`: js.UndefOr[String]?): BlobPropertyBag  (@deprecated in 2.0.0)
 Body[JT] def arrayBuffer(): js.Promise[ArrayBuffer]
@@ -1801,6 +1801,9 @@ ElementDefinitionOptions[JT] var `extends`: js.UndefOr[String]
 EndOfStreamError[JT]
 EndOfStreamError[SO] val decode: EndOfStreamError
 EndOfStreamError[SO] val network: EndOfStreamError
+EndingType[JT]
+EndingType[SO] val native: EndingType
+EndingType[SO] val transparent: EndingType
 ErrorEvent[JT] def bubbles: Boolean
 ErrorEvent[JT] def cancelBubble: Boolean
 ErrorEvent[JT] def cancelable: Boolean
@@ -1946,15 +1949,20 @@ FetchEventInit[JT] var request: js.UndefOr[Request]
 FetchEventInit[JT] var scoped: js.UndefOr[Boolean]
 File[JC] def arrayBuffer(): js.Promise[ArrayBuffer]
 File[JC] def close(): Unit  (@deprecated in 1.2.0)
+File[JC] def lastModified: Double
 File[JC] def name: String
 File[JC] def size: Double
 File[JC] def slice(start: Double?, end: Double?, contentType: String?): Blob
 File[JC] def stream(): ReadableStream[Uint8Array]
 File[JC] def text(): js.Promise[String]
 File[JC] def `type`: String
+File[JC] def webkitRelativePath: String
 FileList[JC] @JSBracketAccess def apply(index: Int): T
 FileList[JC] def item(index: Int): File
 FileList[JC] def length: Int
+FilePropertyBag[JT] var endings: js.UndefOr[EndingType]
+FilePropertyBag[JT] var lastModified: js.UndefOr[Double]
+FilePropertyBag[JT] var `type`: js.UndefOr[String]
 FileReader[JC] def abort(): Unit
 FileReader[JC] def addEventListener[T <: Event](`type`: String, listener: js.Function1[T, _], options: EventListenerOptions): Unit
 FileReader[JC] def addEventListener[T <: Event](`type`: String, listener: js.Function1[T, _], useCapture: Boolean?): Unit
@@ -26925,6 +26933,7 @@ intl/NumberFormatOptions[JT] var useGrouping: js.UndefOr[Boolean]
 intl/NumberFormatOptions[SO] def apply(localeMatcher: js.UndefOr[String]?, style: js.UndefOr[String]?, currency: js.UndefOr[String]?, currencyDisplay: js.UndefOr[String]?, useGrouping: js.UndefOr[Boolean]?, minimumIntegerDigits: js.UndefOr[Double]?, minimumFractionDigits: js.UndefOr[Double]?, maximumFractionDigits: js.UndefOr[Double]?, minimumSignificantDigits: js.UndefOr[Double]?, maximumSignificantDigits: js.UndefOr[Double]?): NumberFormatOptions  (@deprecated in 2.0.0)
 package[SO] type AlgorithmIdentifier = Algorithm | String
 package[SO] type BigInteger = js.typedarray.Uint8Array
+package[SO] type BlobPart = BufferSource | Blob | String
 package[SO] type BodyInit = Blob | BufferSource | FormData | String | ReadableStream[Uint8Array] | URLSearchParams
 package[SO] type BufferSource = ArrayBufferView | ArrayBuffer
 package[SO] type ByteString = String
diff --git a/api-reports/2_13.txt b/api-reports/2_13.txt
index 98edbd087..9a4935c94 100644
--- a/api-reports/2_13.txt
+++ b/api-reports/2_13.txt
@@ -373,7 +373,7 @@ Blob[JC] def stream(): ReadableStream[Uint8Array]
 Blob[JC] def text(): js.Promise[String]
 Blob[JC] def `type`: String
 Blob[JO]
-BlobPropertyBag[JT] var endings: js.UndefOr[String]
+BlobPropertyBag[JT] var endings: js.UndefOr[EndingType]
 BlobPropertyBag[JT] var `type`: js.UndefOr[String]
 BlobPropertyBag[SO] def apply(`type`: js.UndefOr[String]?): BlobPropertyBag  (@deprecated in 2.0.0)
 Body[JT] def arrayBuffer(): js.Promise[ArrayBuffer]
@@ -1801,6 +1801,9 @@ ElementDefinitionOptions[JT] var `extends`: js.UndefOr[String]
 EndOfStreamError[JT]
 EndOfStreamError[SO] val decode: EndOfStreamError
 EndOfStreamError[SO] val network: EndOfStreamError
+EndingType[JT]
+EndingType[SO] val native: EndingType
+EndingType[SO] val transparent: EndingType
 ErrorEvent[JT] def bubbles: Boolean
 ErrorEvent[JT] def cancelBubble: Boolean
 ErrorEvent[JT] def cancelable: Boolean
@@ -1946,15 +1949,20 @@ FetchEventInit[JT] var request: js.UndefOr[Request]
 FetchEventInit[JT] var scoped: js.UndefOr[Boolean]
 File[JC] def arrayBuffer(): js.Promise[ArrayBuffer]
 File[JC] def close(): Unit  (@deprecated in 1.2.0)
+File[JC] def lastModified: Double
 File[JC] def name: String
 File[JC] def size: Double
 File[JC] def slice(start: Double?, end: Double?, contentType: String?): Blob
 File[JC] def stream(): ReadableStream[Uint8Array]
 File[JC] def text(): js.Promise[String]
 File[JC] def `type`: String
+File[JC] def webkitRelativePath: String
 FileList[JC] @JSBracketAccess def apply(index: Int): T
 FileList[JC] def item(index: Int): File
 FileList[JC] def length: Int
+FilePropertyBag[JT] var endings: js.UndefOr[EndingType]
+FilePropertyBag[JT] var lastModified: js.UndefOr[Double]
+FilePropertyBag[JT] var `type`: js.UndefOr[String]
 FileReader[JC] def abort(): Unit
 FileReader[JC] def addEventListener[T <: Event](`type`: String, listener: js.Function1[T, _], options: EventListenerOptions): Unit
 FileReader[JC] def addEventListener[T <: Event](`type`: String, listener: js.Function1[T, _], useCapture: Boolean?): Unit
@@ -26925,6 +26933,7 @@ intl/NumberFormatOptions[JT] var useGrouping: js.UndefOr[Boolean]
 intl/NumberFormatOptions[SO] def apply(localeMatcher: js.UndefOr[String]?, style: js.UndefOr[String]?, currency: js.UndefOr[String]?, currencyDisplay: js.UndefOr[String]?, useGrouping: js.UndefOr[Boolean]?, minimumIntegerDigits: js.UndefOr[Double]?, minimumFractionDigits: js.UndefOr[Double]?, maximumFractionDigits: js.UndefOr[Double]?, minimumSignificantDigits: js.UndefOr[Double]?, maximumSignificantDigits: js.UndefOr[Double]?): NumberFormatOptions  (@deprecated in 2.0.0)
 package[SO] type AlgorithmIdentifier = Algorithm | String
 package[SO] type BigInteger = js.typedarray.Uint8Array
+package[SO] type BlobPart = BufferSource | Blob | String
 package[SO] type BodyInit = Blob | BufferSource | FormData | String | ReadableStream[Uint8Array] | URLSearchParams
 package[SO] type BufferSource = ArrayBufferView | ArrayBuffer
 package[SO] type ByteString = String
diff --git a/dom/src/main/scala-2/org/scalajs/dom/EndingType.scala b/dom/src/main/scala-2/org/scalajs/dom/EndingType.scala
new file mode 100644
index 000000000..fbb249a3c
--- /dev/null
+++ b/dom/src/main/scala-2/org/scalajs/dom/EndingType.scala
@@ -0,0 +1,16 @@
+package org.scalajs.dom
+
+import scala.scalajs.js
+
+/**
+  * Endings enum for  [[https://w3c.github.io/FileAPI/#enumdef-endingtype]]
+  * If set to "native", line endings will be converted to native in any USVString elements in blobParts
+  */
+@js.native
+sealed trait EndingType extends js.Any
+
+object EndingType {
+  val transparent: EndingType = "transparent".asInstanceOf[EndingType]
+  val native: EndingType = "native".asInstanceOf[EndingType]
+
+}
diff --git a/dom/src/main/scala-3/org/scalajs/dom/EndingType.scala b/dom/src/main/scala-3/org/scalajs/dom/EndingType.scala
new file mode 100644
index 000000000..01295a3cd
--- /dev/null
+++ b/dom/src/main/scala-3/org/scalajs/dom/EndingType.scala
@@ -0,0 +1,14 @@
+package org.scalajs.dom
+
+import scala.scalajs.js
+
+/**
+  * Endings enum for  [[https://w3c.github.io/FileAPI/#enumdef-endingtype]]
+  * If set to "native", line endings will be converted to native in any USVString elements in blobParts
+  */
+opaque type EndingType <: String = String
+
+object EndingType {
+  val transparent: EndingType = "transparent"
+  val native: EndingType = "native"
+}
diff --git a/dom/src/main/scala/org/scalajs/dom/Blob.scala b/dom/src/main/scala/org/scalajs/dom/Blob.scala
index 5690e3836..cd2156692 100644
--- a/dom/src/main/scala/org/scalajs/dom/Blob.scala
+++ b/dom/src/main/scala/org/scalajs/dom/Blob.scala
@@ -23,7 +23,7 @@ import scala.scalajs.js.typedarray.{ArrayBuffer, Uint8Array}
   */
 @js.native
 @JSGlobal
-class Blob(blobParts: js.Array[js.Any] = js.native, options: BlobPropertyBag = js.native) extends js.Object {
+class Blob(blobParts: js.Iterable[BlobPart], options: BlobPropertyBag = js.native) extends js.Object {
 
   @deprecated("This method seems to have been added in error and not actually exist.", "1.2.0")
   def close(): Unit = js.native
diff --git a/dom/src/main/scala/org/scalajs/dom/BlobPropertyBag.scala b/dom/src/main/scala/org/scalajs/dom/BlobPropertyBag.scala
index f59526533..924bbffac 100644
--- a/dom/src/main/scala/org/scalajs/dom/BlobPropertyBag.scala
+++ b/dom/src/main/scala/org/scalajs/dom/BlobPropertyBag.scala
@@ -11,7 +11,7 @@ import scala.scalajs.js
 trait BlobPropertyBag extends js.Object {
   var `type`: js.UndefOr[String] = js.undefined
 
-  var endings: js.UndefOr[String] = js.undefined
+  var endings: js.UndefOr[EndingType] = js.undefined
 }
 
 @deprecated("all members of BlobPropertyBag are deprecated", "2.0.0")
diff --git a/dom/src/main/scala/org/scalajs/dom/File.scala b/dom/src/main/scala/org/scalajs/dom/File.scala
index 4a7003f11..f405b5758 100644
--- a/dom/src/main/scala/org/scalajs/dom/File.scala
+++ b/dom/src/main/scala/org/scalajs/dom/File.scala
@@ -19,8 +19,23 @@ import scala.scalajs.js.annotation._
   */
 @js.native
 @JSGlobal
-abstract class File extends Blob {
+class File(bits: js.Iterable[BlobPart], _name: String, options: FilePropertyBag = js.native)
+    extends Blob(bits, options) {
 
   /** Returns the name of the file. For security reasons, the path is excluded from this property. */
   def name: String = js.native
+
+  /** The File.lastModified read-only property provides the last modified date of the file as the number of milliseconds
+    * since the Unix epoch (January 1, 1970 at midnight). Files without a known last modified date return the current
+    * date.
+    */
+  def lastModified: Double = js.native
+
+  /** The File.webkitRelativePath is a read-only property that contains a string which specifies the file's path
+    * relative to the directory selected by the user in an <input> element with its webkitdirectory attribute set.
+    *
+    * @return
+    *   A string containing the path of the file relative to the ancestor directory the user selected.
+    */
+  def webkitRelativePath: String = js.native
 }
diff --git a/dom/src/main/scala/org/scalajs/dom/FilePropertyBag.scala b/dom/src/main/scala/org/scalajs/dom/FilePropertyBag.scala
new file mode 100644
index 000000000..b7ee4e25b
--- /dev/null
+++ b/dom/src/main/scala/org/scalajs/dom/FilePropertyBag.scala
@@ -0,0 +1,8 @@
+package org.scalajs.dom
+
+import scala.scalajs.js
+
+/** An options object containing optional attributes for the file. */
+trait FilePropertyBag extends BlobPropertyBag {
+  var lastModified: js.UndefOr[Double] = js.undefined
+}
diff --git a/dom/src/main/scala/org/scalajs/dom/package.scala b/dom/src/main/scala/org/scalajs/dom/package.scala
index 96b116cad..a17cd5c33 100644
--- a/dom/src/main/scala/org/scalajs/dom/package.scala
+++ b/dom/src/main/scala/org/scalajs/dom/package.scala
@@ -112,4 +112,6 @@ package object dom {
   @js.native
   @JSGlobal("crypto")
   val webcrypto: Crypto = js.native
+
+  type BlobPart = BufferSource | Blob | String
 }