diff --git a/BeefLibs/corlib/src/IO/Directory.bf b/BeefLibs/corlib/src/IO/Directory.bf
index eb2d27ef..0966b08d 100644
--- a/BeefLibs/corlib/src/IO/Directory.bf
+++ b/BeefLibs/corlib/src/IO/Directory.bf
@@ -229,6 +229,11 @@ namespace System.IO
 			return DateTime.FromFileTimeUtc((int64)Platform.BfpFindFileData_GetTime_Access(mFindFileData));
 		}
 
+		public int64 GetFileSize()
+		{
+			return Platform.BfpFindFileData_GetFileSize(mFindFileData);
+		}
+
 		public Platform.BfpFileAttributes GetFileAttributes()
 		{
 			return Platform.BfpFindFileData_GetFileAttributes(mFindFileData);
diff --git a/BeefLibs/corlib/src/Platform.bf b/BeefLibs/corlib/src/Platform.bf
index 443e6604..0e983ec6 100644
--- a/BeefLibs/corlib/src/Platform.bf
+++ b/BeefLibs/corlib/src/Platform.bf
@@ -393,6 +393,8 @@ namespace System
 		[CallingConvention(.Stdcall), CLink]
 		public static extern BfpFileAttributes BfpFindFileData_GetFileAttributes(BfpFindFileData* findData);
 		[CallingConvention(.Stdcall), CLink]
+		public static extern int64 BfpFindFileData_GetFileSize(BfpFindFileData* findData);
+		[CallingConvention(.Stdcall), CLink]
 		public static extern void BfpFindFileData_Release(BfpFindFileData* findData);
 
 		public enum BfpSysDirectoryKind : int32
diff --git a/BeefySysLib/platform/PlatformInterface.h b/BeefySysLib/platform/PlatformInterface.h
index a2591ed6..3a209512 100644
--- a/BeefySysLib/platform/PlatformInterface.h
+++ b/BeefySysLib/platform/PlatformInterface.h
@@ -465,6 +465,7 @@ BFP_EXPORT BfpTimeStamp BFP_CALLTYPE BfpFindFileData_GetTime_LastWrite(BfpFindFi
 BFP_EXPORT BfpTimeStamp BFP_CALLTYPE BfpFindFileData_GetTime_Created(BfpFindFileData* findData);
 BFP_EXPORT BfpTimeStamp BFP_CALLTYPE BfpFindFileData_GetTime_Access(BfpFindFileData* findData);
 BFP_EXPORT BfpFileAttributes BFP_CALLTYPE BfpFindFileData_GetFileAttributes(BfpFindFileData* findData);
+BFP_EXPORT int64 BFP_CALLTYPE BfpFindFileData_GetFileSize(BfpFindFileData* findData);
 BFP_EXPORT void BFP_CALLTYPE BfpFindFileData_Release(BfpFindFileData* findData);
 
 BFP_EXPORT int BFP_CALLTYPE BfpStack_CaptureBackTrace(int framesToSkip, intptr* outFrames, int wantFrameCount);
diff --git a/BeefySysLib/platform/posix/PosixCommon.cpp b/BeefySysLib/platform/posix/PosixCommon.cpp
index d6423ba6..82d67553 100644
--- a/BeefySysLib/platform/posix/PosixCommon.cpp
+++ b/BeefySysLib/platform/posix/PosixCommon.cpp
@@ -2412,6 +2412,11 @@ BFP_EXPORT BfpFileAttributes BFP_CALLTYPE BfpFindFileData_GetFileAttributes(BfpF
     return flags;
 }
 
+BFP_EXPORT int64 BFP_CALLTYPE BfpFindFileData_GetFileSize(BfpFindFileData* findData)
+{
+    return (int64)findData->mStat.st_size;
+}
+
 BFP_EXPORT void BFP_CALLTYPE BfpFindFileData_Release(BfpFindFileData* findData)
 {
     delete findData;
diff --git a/BeefySysLib/platform/win/Platform.cpp b/BeefySysLib/platform/win/Platform.cpp
index cf434429..9296987b 100644
--- a/BeefySysLib/platform/win/Platform.cpp
+++ b/BeefySysLib/platform/win/Platform.cpp
@@ -3414,6 +3414,11 @@ BFP_EXPORT BfpFileAttributes BFP_CALLTYPE BfpFindFileData_GetFileAttributes(BfpF
 	return FileAttributes_WinToBFP(findData->mFindData.dwFileAttributes);
 }
 
+BFP_EXPORT int64 BFP_CALLTYPE BfpFindFileData_GetFileSize(BfpFindFileData* findData)
+{
+	return ((int64)findData->mFindData.nFileSizeHigh << 32) | (int64)findData->mFindData.nFileSizeLow;
+}
+
 BFP_EXPORT void BFP_CALLTYPE BfpFindFileData_Release(BfpFindFileData* findData)
 {
 	::FindClose(findData->mHandle);