diff --git a/Userland/Utilities/xml.cpp b/Userland/Utilities/xml.cpp
index 866ec260eb..6f317f7752 100644
--- a/Userland/Utilities/xml.cpp
+++ b/Userland/Utilities/xml.cpp
@@ -10,6 +10,7 @@
 #include <AK/URLParser.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/File.h>
+#include <LibCore/Stream.h>
 #include <LibMain/Main.h>
 #include <LibXML/DOM/Document.h>
 #include <LibXML/DOM/Node.h>
@@ -370,8 +371,8 @@ static auto parse(StringView contents)
                 if (url.scheme() != "file")
                     return Error::from_string_literal("NYI: Nonlocal entity");
 
-                auto file = TRY(Core::File::open(url.path(), Core::OpenMode::ReadOnly));
-                return String::copy(file->read_all());
+                auto file = TRY(Core::Stream::File::open(url.path(), Core::Stream::OpenMode::Read));
+                return String::copy(TRY(file->read_all()));
             },
         },
     };
@@ -439,7 +440,7 @@ static void do_run_tests(XML::Document& document)
                 continue;
             }
 
-            auto file_result = Core::File::open(url.path(), Core::OpenMode::ReadOnly);
+            auto file_result = Core::Stream::File::open(url.path(), Core::Stream::OpenMode::Read);
             if (file_result.is_error()) {
                 warnln("Read error for {}: {}", url.path(), file_result.error());
                 s_test_results.set(url.path(), TestResult::RunnerFailed);
@@ -449,7 +450,12 @@ static void do_run_tests(XML::Document& document)
             warnln("Running test {}", url.path());
 
             auto contents = file_result.value()->read_all();
-            auto parser = parse(contents);
+            if (contents.is_error()) {
+                warnln("Read error for {}: {}", url.path(), contents.error());
+                s_test_results.set(url.path(), TestResult::RunnerFailed);
+                continue;
+            }
+            auto parser = parse(contents.value());
             auto doc_or_error = parser.parse();
             if (doc_or_error.is_error()) {
                 if (type == "invalid" || type == "error" || type == "not-wf")
@@ -462,14 +468,19 @@ static void do_run_tests(XML::Document& document)
             auto out = suite.attributes.find("OUTPUT");
             if (out != suite.attributes.end()) {
                 auto out_path = LexicalPath::join(test_base_path, out->value).string();
-                auto file_result = Core::File::open(out_path, Core::OpenMode::ReadOnly);
+                auto file_result = Core::Stream::File::open(out_path, Core::Stream::OpenMode::Read);
                 if (file_result.is_error()) {
                     warnln("Read error for {}: {}", out_path, file_result.error());
                     s_test_results.set(url.path(), TestResult::RunnerFailed);
                     continue;
                 }
                 auto contents = file_result.value()->read_all();
-                auto parser = parse(contents);
+                if (contents.is_error()) {
+                    warnln("Read error for {}: {}", out_path, contents.error());
+                    s_test_results.set(url.path(), TestResult::RunnerFailed);
+                    continue;
+                }
+                auto parser = parse(contents.value());
                 auto out_doc_or_error = parser.parse();
                 if (out_doc_or_error.is_error()) {
                     warnln("Parse error for {}: {}", out_path, out_doc_or_error.error());
@@ -505,8 +516,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     parser.parse(arguments);
 
     s_path = Core::File::real_path_for(filename);
-    auto file = TRY(Core::File::open(s_path, Core::OpenMode::ReadOnly));
-    auto contents = file->read_all();
+    auto file = TRY(Core::Stream::File::open(s_path, Core::Stream::OpenMode::Read));
+    auto contents = TRY(file->read_all());
 
     auto xml_parser = parse(contents);
     auto result = xml_parser.parse();