diff --git a/SConstruct b/SConstruct
index a5e2b1e..eb74adb 100644
--- a/SConstruct
+++ b/SConstruct
@@ -76,6 +76,10 @@ env.Append(
 		"gd_spritestudio/SpriteStudio6-SDK/Common/Helper",
 	]
 )
+
+if env["platform"] == 'macos':
+    env.Append(LINKFLAGS=["-framework", "CoreFoundation"])
+
 # Set iOS minimum deployment target
 if env["platform"] == "ios":
     env.Append(CCFLAGS=["-miphoneos-version-min=12.0"])
@@ -89,7 +93,6 @@ sources.extend(Glob("gd_spritestudio/SpriteStudio6-SDK/Common/Helper/DebugPrint.
 sources.extend(Glob("gd_spritestudio/SpriteStudio6-SDK/Common/Helper/IsshTexture.cpp"))
 sources.extend(Glob("gd_spritestudio/SpriteStudio6-SDK/Common/Helper/stb_image.c"))
 
-
 if env["target"] in ["editor", "template_debug"]:
     try:
         doc_data = env.GodotCPPDocData("src/gen/doc_data.gen.cpp", source=Glob("doc_classes/*.xml"))
diff --git a/examples/feature_test_gdextension/project.godot b/examples/feature_test_gdextension/project.godot
index b970ebc..1d10696 100644
--- a/examples/feature_test_gdextension/project.godot
+++ b/examples/feature_test_gdextension/project.godot
@@ -25,4 +25,5 @@ common/enable_pause_aware_picking=true
 
 [rendering]
 
+textures/vram_compression/import_etc2_astc=true
 environment/defaults/default_environment="res://default_env.tres"
diff --git a/gd_spritestudio/gd_io.cpp b/gd_spritestudio/gd_io.cpp
index c6e8249..0fc40b9 100644
--- a/gd_spritestudio/gd_io.cpp
+++ b/gd_spritestudio/gd_io.cpp
@@ -31,24 +31,14 @@ String GdIO::loadStringFromFile( const String& strPath )
 	String				str = String( "" );
 
 #ifdef SPRITESTUDIO_GODOT_EXTENSION
-	Ref<FileAccess>		resFileAccess = FileAccess::open( strPath, FileAccess::READ);
-	err = resFileAccess->get_error();
-	if ( err != OK ) {
+    str = FileAccess::get_file_as_string(strPath);
+	if (str.length() == 0) {
+		err = ERR_FILE_UNRECOGNIZED;
 		ERR_PRINT( String( "loadStringFromFile error: " ) + String::num( err ) );
 
-		if ( resFileAccess.is_valid() ) {
-			resFileAccess->close();
-		}
-
 		return str;
 	}
 
-	while ( !resFileAccess->eof_reached() ) {
-		str += resFileAccess->get_line();
-	}
-
-	resFileAccess->close();
-
 #endif
 #ifdef GD_V4
 	Ref<FileAccess>		resFileAccess = FileAccess::open( strPath, FileAccess::READ, &err );
@@ -96,14 +86,10 @@ Error GdIO::saveStringToFile( const String& strPath, const String& str )
 
 #ifdef SPRITESTUDIO_GODOT_EXTENSION
 	Ref<FileAccess>		resFileAccess = FileAccess::open( strPath, FileAccess::WRITE);
-	err = resFileAccess->get_error();
-	if ( err != OK ) {
+	if ( !resFileAccess.is_valid() ) {
+		err = ERR_FILE_CANT_OPEN;
 		ERR_PRINT( String( "saveStringToFile error: " ) + String::num( err ) );
 
-		if ( resFileAccess.is_valid() ) {
-			resFileAccess->close();
-		}
-
 		return err;
 	}
 
@@ -157,14 +143,9 @@ Variant GdIO::loadVariantFromFile( const String& strPath )
 
 #ifdef SPRITESTUDIO_GODOT_EXTENSION
 	Ref<FileAccess>		resFileAccess = FileAccess::open( strPath, FileAccess::READ);
-	err = resFileAccess->get_error();
-	if ( err != OK ) {
+	if ( !resFileAccess.is_valid() ) {
+		err = ERR_FILE_CANT_OPEN;
 		ERR_PRINT( String( "loadVariantFromFile error: " ) + String::num( err ) );
-
-		if ( resFileAccess.is_valid() ) {
-			resFileAccess->close();
-		}
-
 		return	val;
 	}
 
@@ -241,14 +222,10 @@ Error GdIO::saveVariantToFile( const String& strPath, const Variant& val )
 
 #ifdef SPRITESTUDIO_GODOT_EXTENSION
 	Ref<FileAccess>		resFileAccess = FileAccess::open( strPath, FileAccess::WRITE);
-	err = resFileAccess->get_error();
-	if ( err != OK ) {
+	if ( !resFileAccess.is_valid() ) {
+		err =  ERR_FILE_CANT_OPEN;
 		ERR_PRINT( String( "saveVariantToFile error: " ) + String::num( err ) );
 
-		if ( resFileAccess.is_valid() ) {
-			resFileAccess->close();
-		}
-
 		return	err;
 	}