Erroneous FileRead

#include <stdio.h>
#include <stdlib.h>

static char *
FileReadAsString(char *FileName)
{
    char *Result = 0;
    
    FILE *File;
    File = fopen(FileName, "r");
    
    int FileSize;
    if(File)
    {
        
        
        fseek(File,0,SEEK_END);
        FileSize = ftell(File);

        rewind(File);
        
        printf("file: %zi\n",FileSize); // Causes error
        
        Result = (char *)malloc(FileSize + 1);
        fread(Result, 1, sizeof(*File) , File);
        //fread(Result, sizeof(*File), 1, File); // handmade hero style
        Result[FileSize] = 0;
        
        fclose(File);
    }
    //File = fopen("some.txt","w");
    //fwrite(Result, 1, FileSize, File);
    
    return Result;
}

int
main()
{
    char *String;
    String = FileReadAsString("apple.txt");
    
    printf(String);
}