diff --git a/Userland/Libraries/LibArchive/Tar.cpp b/Userland/Libraries/LibArchive/Tar.cpp
index f373752823c8a9..65954ba64ff782 100644
--- a/Userland/Libraries/LibArchive/Tar.cpp
+++ b/Userland/Libraries/LibArchive/Tar.cpp
@@ -30,4 +30,9 @@ void TarFileHeader::calculate_checksum()
     VERIFY(String::formatted("{:06o}", expected_checksum()).copy_characters_to_buffer(m_checksum, sizeof(m_checksum)));
 }
 
+bool TarFileHeader::content_is_like_extended_header() const
+{
+    return type_flag() == TarFileType::ExtendedHeader || type_flag() == TarFileType::GlobalExtendedHeader;
+}
+
 }
diff --git a/Userland/Libraries/LibArchive/Tar.h b/Userland/Libraries/LibArchive/Tar.h
index 036d3c8a744669..3772840e8d4075 100644
--- a/Userland/Libraries/LibArchive/Tar.h
+++ b/Userland/Libraries/LibArchive/Tar.h
@@ -116,6 +116,8 @@ class [[gnu::packed]] TarFileHeader {
     unsigned expected_checksum() const;
     void calculate_checksum();
 
+    bool content_is_like_extended_header() const;
+
 private:
     char m_filename[100] { 0 };
     char m_mode[8] { 0 };