diff --git a/rpcs3/Emu/Cell/lv2/sys_fs.cpp b/rpcs3/Emu/Cell/lv2/sys_fs.cpp
index a9a9feaa73..d8f8538cd4 100644
--- a/rpcs3/Emu/Cell/lv2/sys_fs.cpp
+++ b/rpcs3/Emu/Cell/lv2/sys_fs.cpp
@@ -23,6 +23,55 @@ lv2_fs_mount_point g_mp_sys_dev_flash{"", 512, 8192, lv2_mp_flag::read_only + lv
 lv2_fs_mount_point g_mp_sys_dev_flash2{ "", 512, 8192, lv2_mp_flag::no_uid_gid }; // TODO confirm
 lv2_fs_mount_point g_mp_sys_dev_flash3{ "", 512, 8192, lv2_mp_flag::read_only + lv2_mp_flag::no_uid_gid }; // TODO confirm
 
+template<>
+void fmt_class_string<lv2_file>::format(std::string& out, u64 arg)
+{
+	const auto& file = get_object(arg);
+
+	std::string_view type_s;
+	switch (file.type)
+	{
+	case lv2_file_type::regular: type_s = "Regular file"; break;
+	case lv2_file_type::sdata: type_s = "SDATA"; break;
+	case lv2_file_type::edata: type_s = "EDATA"; break;
+	}
+
+	auto get_size = [](u64 size) -> std::string
+	{
+		if (size == umax)
+		{
+			return "N/A";
+		}
+
+		std::string size_str = fmt::format("0x%05x ", size);
+		switch (std::bit_width(size) / 10 * 10)
+		{
+		case 64: size_str = "0"s; break;
+		case 0: fmt::append(size_str, "(%u)", size); break;
+		case 10: fmt::append(size_str, "(%gKB)", size / 1024.); break;
+		case 20: fmt::append(size_str, "(%gMB)", size / (1024. * 1024)); break;
+
+		default:
+		case 30: fmt::append(size_str, "(%gGB)", size / (1024. * 1024 * 1024)); break;
+		}
+	
+		return size_str;
+	};
+
+	const usz pos = file.file ? file.file.pos() : umax;
+	const usz size = file.file ? file.file.size() : umax;
+
+	fmt::append(out, u8"%s, “%s”, Mode: 0x%x, Flags: 0x%x, Pos: %s, Size: %s", type_s, file.name.data(), file.mode, file.flags, get_size(pos), get_size(size));
+}
+
+template<>
+void fmt_class_string<lv2_dir>::format(std::string& out, u64 arg)
+{
+	const auto& dir = get_object(arg);
+
+	fmt::append(out, u8"Directory, “%s”, Entries: %u/%u", dir.name.data(), std::min<u64>(dir.pos, dir.entries.size()), dir.entries.size());
+}
+
 bool verify_mself(const fs::file& mself_file)
 {
 	FsMselfHeader mself_header;
diff --git a/rpcs3/Emu/Cell/lv2/sys_fs.h b/rpcs3/Emu/Cell/lv2/sys_fs.h
index 08b4f2d04c..7399725ad3 100644
--- a/rpcs3/Emu/Cell/lv2/sys_fs.h
+++ b/rpcs3/Emu/Cell/lv2/sys_fs.h
@@ -166,18 +166,18 @@ struct lv2_fs_object
 	// File Name (max 1055)
 	const std::array<char, 0x420> name;
 
+protected:
 	lv2_fs_object(lv2_fs_mount_point* mp, std::string_view filename)
 		: mp(mp)
 		, name(get_name(filename))
 	{
 	}
 
+public:
 	lv2_fs_object(const lv2_fs_object&) = delete;
 
 	lv2_fs_object& operator=(const lv2_fs_object&) = delete;
 
-	virtual ~lv2_fs_object() = default;
-
 	static lv2_fs_mount_point* get_mp(std::string_view filename);
 
 	static std::array<char, 0x420> get_name(std::string_view filename)
@@ -193,8 +193,6 @@ struct lv2_fs_object
 		name[filename.size()] = 0;
 		return name;
 	}
-
-	virtual std::string to_string() const { return {}; }
 };
 
 struct lv2_file final : lv2_fs_object
@@ -276,19 +274,6 @@ struct lv2_file final : lv2_fs_object
 
 	// Make file view from lv2_file object (for MSELF support)
 	static fs::file make_view(const std::shared_ptr<lv2_file>& _file, u64 offset);
-
-	virtual std::string to_string() const override
-	{
-		std::string_view type_s;
-		switch (type)
-		{
-		case lv2_file_type::regular: type_s = "Regular file"; break;
-		case lv2_file_type::sdata: type_s = "SDATA"; break;
-		case lv2_file_type::edata: type_s = "EDATA"; break;
-		}
-
-		return fmt::format(u8"%s, “%s”, Mode: 0x%x, Flags: 0x%x", type_s, name.data(), mode, flags);
-	}
 };
 
 struct lv2_dir final : lv2_fs_object
@@ -314,11 +299,6 @@ struct lv2_dir final : lv2_fs_object
 
 		return nullptr;
 	}
-
-	virtual std::string to_string() const override
-	{
-		return fmt::format(u8"Directory, “%s”, Entries: %u/%u", name.data(), std::min<u64>(pos, entries.size()), entries.size());
-	}
 };
 
 // sys_fs_fcntl arg base class (left empty for PODness)
diff --git a/rpcs3/rpcs3qt/kernel_explorer.cpp b/rpcs3/rpcs3qt/kernel_explorer.cpp
index c096913354..49655e23de 100644
--- a/rpcs3/rpcs3qt/kernel_explorer.cpp
+++ b/rpcs3/rpcs3qt/kernel_explorer.cpp
@@ -813,7 +813,22 @@ void kernel_explorer::Update()
 
 	idm::select<lv2_fs_object>([&](u32 id, lv2_fs_object& fo)
 	{
-		add_leaf(find_node(root, additional_nodes::file_descriptors), qstr(fmt::format("FD %u: %s", id, fo.to_string())));
+		const std::string str = fmt::format("FD %u: %s", id, [&]() -> std::string
+		{
+			if (idm::check_unlocked<lv2_fs_object, lv2_file>(id))
+			{
+				return fmt::format("%s", static_cast<lv2_file&>(fo));
+			}
+
+			if (idm::check_unlocked<lv2_fs_object, lv2_dir>(id))
+			{
+				return fmt::format("%s", static_cast<lv2_dir&>(fo));
+			}
+
+			return "Unknown object!";
+		}());
+
+		add_leaf(find_node(root, additional_nodes::file_descriptors), qstr(str));
 	});
 
 	std::function<int(QTreeWidgetItem*)> final_touches;