diff --git a/desmume/src/mc.cpp b/desmume/src/mc.cpp
index 56f749cd3..6d5d73ee4 100644
--- a/desmume/src/mc.cpp
+++ b/desmume/src/mc.cpp
@@ -982,7 +982,8 @@ u32 BackupDevice::importDataSize(const char *filename)
 	u32 res = 0;
 	if (strlen(filename) < 4) return 0;
 
-	if (memcmp(filename + strlen(filename) - 4, ".duc", 4) == 0)
+	if ((memcmp(filename + strlen(filename) - 4, ".duc", 4) == 0) ||
+		(memcmp(filename + strlen(filename) - 4, ".dss", 4) == 0))
 	{
 		res = get_save_duc_size(filename);
 		if (res == 0xFFFFFFFF) return 0;
@@ -1003,7 +1004,8 @@ bool BackupDevice::importData(const char *filename, u32 force_size)
 	bool res = false;
 	if (strlen(filename) < 4) return res;
 
-	if (memcmp(filename + strlen(filename) - 4, ".duc", 4) == 0)
+	if ((memcmp(filename + strlen(filename) - 4, ".duc", 4) == 0) ||
+		(memcmp(filename + strlen(filename) - 4, ".dss", 4) == 0))
 		res = import_duc(filename, force_size);
 	else
 		if (import_no_gba(filename, force_size))
diff --git a/desmume/src/windows/importSave.cpp b/desmume/src/windows/importSave.cpp
index 889b972fd..adafc9e22 100644
--- a/desmume/src/windows/importSave.cpp
+++ b/desmume/src/windows/importSave.cpp
@@ -169,11 +169,11 @@ bool importSave(HWND hwnd, HINSTANCE hAppInst)
 	ZeroMemory(&ofn, sizeof(ofn));
 	ofn.lStructSize = sizeof(ofn);
 	ofn.hwndOwner = hwnd;
-	ofn.lpstrFilter = "All supported types\0*.duc;*.sav\0Action Replay DS Save (*.duc)\0*.duc\0Raw/No$GBA Save format (*.sav)\0*.sav\0\0";
+	ofn.lpstrFilter = "All supported types\0*.sav;*.duc;*.dss\0Raw/No$GBA Save format (*.sav)\0*.sav\0Action Replay DS Save (*.duc,*.dss)\0*.duc;*.dss\0\0";
 	ofn.nFilterIndex = 1;
 	ofn.lpstrFile =  ImportSavFName;
 	ofn.nMaxFile = MAX_PATH;
-	ofn.lpstrDefExt = "duc";
+	ofn.lpstrDefExt = "sav";
 	ofn.Flags = OFN_HIDEREADONLY | OFN_FILEMUSTEXIST;
 
 	char buffer[MAX_PATH] = {0};