diff --git a/include/Nazara/Core/File.hpp b/include/Nazara/Core/File.hpp
index 7529a818f..bd3493d7e 100644
--- a/include/Nazara/Core/File.hpp
+++ b/include/Nazara/Core/File.hpp
@@ -57,6 +57,7 @@ namespace Nz
 			static inline ByteArray ComputeHash(HashType hash, const std::filesystem::path& filePath);
 			static inline ByteArray ComputeHash(AbstractHash& hash, const std::filesystem::path& filePath);
 			static std::optional<std::vector<UInt8>> ReadWhole(const std::filesystem::path& path);
+			static bool WriteWhole(const std::filesystem::path& path, const void* data, std::size_t size);
 
 		private:
 			void FlushStream() override;
diff --git a/src/Nazara/Core/File.cpp b/src/Nazara/Core/File.cpp
index d8196887a..196c6ec4b 100644
--- a/src/Nazara/Core/File.cpp
+++ b/src/Nazara/Core/File.cpp
@@ -272,7 +272,7 @@ namespace Nz
 		File file(path);
 		if (!file.Open(OpenMode::ReadOnly | OpenMode::Unbuffered)) //< unbuffered since we will read all the file at once
 		{
-			NazaraError("Failed to open \"" + path.generic_u8string() + '"');
+			NazaraError("failed to open \"" + path.generic_u8string() + '"');
 			return std::nullopt;
 		}
 
@@ -280,13 +280,31 @@ namespace Nz
 		std::vector<UInt8> content(size);
 		if (size > 0 && file.Read(&content[0], size) != size)
 		{
-			NazaraError("Failed to read file");
+			NazaraError("failed to read file");
 			return std::nullopt;
 		}
 
 		return content;
 	}
 
+	bool File::WriteWhole(const std::filesystem::path& path, const void* data, std::size_t size)
+	{
+		File file(path);
+		if (!file.Open(OpenMode::WriteOnly | OpenMode::Unbuffered)) //< unbuffered since we will write all the file at once
+		{
+			NazaraError("failed to open \"" + path.generic_u8string() + '"');
+			return false;
+		}
+
+		if (file.Write(data, size) != size)
+		{
+			NazaraError("failed to write file");
+			return false;
+		}
+
+		return true;
+	}
+
 	/*!
 	* \brief Flushes the stream
 	*