The fseek() function on Windows only accepts a 32-bit long offset argument. Because of this we have our own version, BLI_fseek(), which will use 64-bit _fseeki64() on Windows. This patch just replaces some fseek() calls with BLI_fseek(). Differential Revision: https://developer.blender.org/D11430 Reviewed by Brecht Van Lommel