diff --git a/ext/Read.c b/ext/Read.c
index 8971de5..a4bed5e 100644
--- a/ext/Read.c
+++ b/ext/Read.c
@@ -21,25 +21,25 @@ double read_double_t() { uint64_t t=0; fread(&t, sizeof(t), 1, fp); if (swap_end
 struct stata_file * read_stata_file(char * filename)
 {
   if (verbose) printf("read file '%s'\n", filename);
-  
+
   long i,j;
-  
+
   struct stata_file * f = (struct stata_file *)malloc(sizeof(struct stata_file));
   memset(f, 0, sizeof(struct stata_file));
   f->filename = (char*)malloc(strlen(filename)+1);
   strcpy(f->filename, filename);
-  
+
   fp = fopen(f->filename, "rb");
   if (fp == NULL) { set_error(f, "error reading file"); return f; }
-  
+
   /*fseek(fp, 0 , SEEK_END);
   long lSize = ftell(fp);
   rewind(fp);
   printf("file is %ld bytes long\n", lSize);*/
-  
-  
+
+
   /* 5.1 Header */
-  f->ds_format = fgetc(fp);  if (f->ds_format != 0x72) { set_error(f, "invalid file ds_format"); return f; }
+  f->ds_format = fgetc(fp);  if (f->ds_format < 0x72) { set_error(f, "invalid file ds_format"); return f; }
   f->byteorder = fgetc(fp);  if (f->byteorder != 0x01 && f->byteorder != 0x02) { set_error(f, "invalid file byteorder"); return f; }
   if (f->byteorder != get_host_endian()) swap_endian_needed = 1;
   f->filetype = fgetc(fp);   if (f->filetype != 0x01) { set_error(f, "invalid file filetype"); return f; }
@@ -48,8 +48,8 @@ struct stata_file * read_stata_file(char * filename)
   f->nobs = read_uint32_t(); if (f->nobs <= 0) { set_error(f, "invalid nobs (< 1)"); return f; }
   fread(&f->data_label, sizeof(f->data_label), 1, fp);
   fread(&f->time_stamp, sizeof(f->time_stamp), 1, fp);
-  
-  
+
+
   /* 5.2 Descriptors */
   f->typlist = (uint8_t *)malloc(f->nvar);
   fread(f->typlist, 1, f->nvar, fp);
@@ -58,12 +58,12 @@ struct stata_file * read_stata_file(char * filename)
   for (i = 0 ; i <= f->nvar ; i++) f->srtlist[i] = read_uint16_t();
   f->fmtlist = read_strings(f->nvar, 49);
   f->lbllist = read_strings(f->nvar, 33);
-  
-  
+
+
   /* 5.3 Variable Labels */
   f->variable_labels = read_strings(f->nvar, 81);
-  
-  
+
+
   /* 5.4 Expansion Fields */
   uint8_t data_type;
   uint32_t len;
@@ -73,8 +73,8 @@ struct stata_file * read_stata_file(char * filename)
     if (len > 0) for (i = 0 ; i < len ; i++) fgetc(fp);
   } while(data_type != 0 || len != 0 || feof(fp));
   /*printf ("read %d bytes of expansion fields\n", count);*/
-  
-  
+
+
   /* 5.5 Data */
   /*printf("  read 5.5 Data (%dx%d)\n", f->nobs, f->nvar);*/
   f->obs = (struct stata_obs *)malloc(sizeof(struct stata_obs)*f->nobs);
@@ -85,8 +85,8 @@ struct stata_file * read_stata_file(char * filename)
     {
       struct stata_var * var = &f->obs[j].var[i];
       memset(var, 0, sizeof(struct stata_var));
-      
-      if (f->typlist[i] != 0 && 
+
+      if (f->typlist[i] != 0 &&
           f->typlist[i] < 245) { var->v_type = V_STR;    var->v_str = read_string(f->typlist[i]); if (feof(fp)) { set_error(f, "end of file reached too soon"); return f; }; }
       else if (f->typlist[i] == 251) { var->v_type = V_BYTE;   if (fread(&var->v_byte, sizeof(var->v_byte), 1, fp) != 1) { set_error(f, "fread from file failed"); }; if (feof(fp)) { set_error(f, "end of file reached too soon"); return f; }; }
       else if (f->typlist[i] == 252) { var->v_type = V_INT;    var->v_int = read_int16_t();     if (feof(fp)) { set_error(f, "end of file reached too soon"); return f; }; }
@@ -94,14 +94,14 @@ struct stata_file * read_stata_file(char * filename)
       else if (f->typlist[i] == 254) { var->v_type = V_FLOAT;  var->v_float = read_float_t();   if (feof(fp)) { set_error(f, "end of file reached too soon"); return f; }; }
       else if (f->typlist[i] == 255) { var->v_type = V_DOUBLE; var->v_double = read_double_t(); if (feof(fp)) { set_error(f, "end of file reached too soon"); return f; }; }
       else fprintf(stderr, "error.\n");
-      
+
       if (ferror(fp)) perror("error occurred");
       if (feof(fp)) { fprintf(stderr, "eof error at var %ld (error:%d)\n", i, ferror(fp)); break; }
     }
     if (feof(fp)) { fprintf(stderr, "eof error at obs %ld (error:%d)\n", j, ferror(fp)); exit(1); }
   }
-  
-  
+
+
   /* 5.6 Value labels */
   if (!feof(fp))
   {
@@ -109,14 +109,14 @@ struct stata_file * read_stata_file(char * filename)
     {
       int32_t len = read_int32_t();
       if (feof(fp) || len == 0) break;
-      
+
       f->num_vlt++;
       f->vlt = (struct stata_vlt *)realloc(f->vlt, sizeof(struct stata_vlt)*f->num_vlt);
       struct stata_vlt * vlt = &f->vlt[f->num_vlt-1];
-      
+
       if (fread(vlt->name, 33, 1, fp) != 1) { set_error(f, "fread from file failed"); return f; };
       fgetc(fp); fgetc(fp); fgetc(fp); /* padding */
-      
+
       vlt->n = read_int32_t();
       vlt->txtlen = read_int32_t(); if (vlt->txtlen >= 32000) { set_error(f, "value label table txtlen is > 32000"); return f; };
       vlt->off = (int32_t*)malloc(sizeof(int32_t)*vlt->n);
@@ -129,7 +129,7 @@ struct stata_file * read_stata_file(char * filename)
   }
   /*printf("  read 5.6 Value labels (%d)\n", f->num_vlt);*/
 
-  
+
   fclose(fp);
   return f;
 }
diff --git a/stata.gemspec b/stata.gemspec
index 4ca3433..c9d4c7f 100644
--- a/stata.gemspec
+++ b/stata.gemspec
@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |s|
   s.name     = 'stata'
-  s.version  = '0.1.1'
+  s.version  = '0.1.2'
   s.authors  = ['Kevin Branigan']
   s.summary  = 'Read and write support for the Stata binary format'
   s.homepage = 'http://github.com/unspace/stata'