diff --git a/src/demos/zdemo_excel38.prog.abap b/src/demos/zdemo_excel38.prog.abap
index c7c62dd..2a59f9d 100644
--- a/src/demos/zdemo_excel38.prog.abap
+++ b/src/demos/zdemo_excel38.prog.abap
@@ -14,7 +14,7 @@ TYPES: BEGIN OF gty_icon,
        gtyt_icon TYPE STANDARD TABLE OF gty_icon WITH NON-UNIQUE DEFAULT KEY.
 
 DATA: lt_icon       TYPE gtyt_icon,
-      lv_row        TYPE sytabix,
+      lv_row        TYPE i,
       ls_wwwdatatab TYPE wwwdatatab,
       lt_mimedata   TYPE STANDARD TABLE OF w3mime WITH NON-UNIQUE DEFAULT KEY,
       lv_xstring    TYPE xstring.
diff --git a/src/zcl_excel.clas.abap b/src/zcl_excel.clas.abap
index 4b140fa..2af87ae 100644
--- a/src/zcl_excel.clas.abap
+++ b/src/zcl_excel.clas.abap
@@ -98,7 +98,7 @@ CLASS zcl_excel DEFINITION
       IMPORTING
         !ip_guid        TYPE zexcel_cell_style
       RETURNING
-        VALUE(ep_index) TYPE sytabix
+        VALUE(ep_index) TYPE i
       RAISING
         zcx_excel .
     METHODS get_style_to_guid
diff --git a/src/zcl_excel_reader_2007.clas.abap b/src/zcl_excel_reader_2007.clas.abap
index e9f3ba5..0906a43 100644
--- a/src/zcl_excel_reader_2007.clas.abap
+++ b/src/zcl_excel_reader_2007.clas.abap
@@ -1782,7 +1782,7 @@ CLASS zcl_excel_reader_2007 IMPLEMENTATION.
       lo_worksheet               TYPE REF TO zcl_excel_worksheet,
       lo_range                   TYPE REF TO zcl_excel_range,
       lv_worksheet_title         TYPE zexcel_sheet_title,
-      lv_tabix                   TYPE sytabix,            " #235 - repeat rows/cols.  Needed to link defined name to correct worksheet
+      lv_tabix                   TYPE i,            " #235 - repeat rows/cols.  Needed to link defined name to correct worksheet
 
       ls_range                   TYPE t_range,
       lv_range_value             TYPE zexcel_range_value,
diff --git a/src/zcl_excel_writer_2007.clas.abap b/src/zcl_excel_writer_2007.clas.abap
index d1feb67..24af91e 100644
--- a/src/zcl_excel_writer_2007.clas.abap
+++ b/src/zcl_excel_writer_2007.clas.abap
@@ -3547,7 +3547,7 @@ CLASS zcl_excel_writer_2007 IMPLEMENTATION.
           ls_shared_string   TYPE zexcel_s_shared_string,
           lv_count_str       TYPE string,
           lv_uniquecount_str TYPE string,
-          lv_sytabix         TYPE sytabix,
+          lv_sytabix         TYPE i,
           lv_count           TYPE i,
           lv_uniquecount     TYPE i.
 
@@ -6415,7 +6415,7 @@ CLASS zcl_excel_writer_2007 IMPLEMENTATION.
 
     TYPES: BEGIN OF ts_built_in_format,
              num_format TYPE zexcel_number_format,
-             id         TYPE sytabix,
+             id         TYPE i,
            END OF ts_built_in_format.
 
     DATA: lt_built_in_num_formats TYPE HASHED TABLE OF ts_built_in_format WITH UNIQUE KEY num_format,
diff --git a/src/zcl_excel_writer_csv.clas.abap b/src/zcl_excel_writer_csv.clas.abap
index 2be17af..4c28c72 100644
--- a/src/zcl_excel_writer_csv.clas.abap
+++ b/src/zcl_excel_writer_csv.clas.abap
@@ -81,8 +81,8 @@ CLASS zcl_excel_writer_csv IMPLEMENTATION.
           lo_worksheet TYPE REF TO zcl_excel_worksheet.
 
     DATA: lt_cell_data TYPE zexcel_t_cell_data_unsorted,
-          lv_row       TYPE sytabix,
-          lv_col       TYPE sytabix,
+          lv_row       TYPE i,
+          lv_col       TYPE i,
           lv_string    TYPE string,
           lc_value     TYPE string,
           lv_attrname  TYPE seocmpname.
diff --git a/src/zcl_excel_writer_huge_file.clas.abap b/src/zcl_excel_writer_huge_file.clas.abap
index 25894e6..e5941f7 100644
--- a/src/zcl_excel_writer_huge_file.clas.abap
+++ b/src/zcl_excel_writer_huge_file.clas.abap
@@ -62,7 +62,7 @@ CLASS zcl_excel_writer_huge_file IMPLEMENTATION.
       ls_root          TYPE ts_root,
       lt_cell_data     TYPE zexcel_t_cell_data_unsorted,
       ls_shared_string TYPE zexcel_s_shared_string,
-      lv_sytabix       TYPE sytabix.
+      lv_sytabix       TYPE i.
 
     FIELD-SYMBOLS:
       <sheet_content>     TYPE zexcel_s_cell_data.