diff --git a/CHANGELOG.md b/CHANGELOG.md
index b0cc938..3c4752a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## [6.3.1](https://git.datacontroller.io/dc/dc/compare/v6.3.0...v6.3.1) (2024-01-01)
+
+
+### Bug Fixes
+
+* enabling excel uploads to tables with retained keys, also adding more validation to MPE_TABLES updates ([3efccc4](https://git.datacontroller.io/dc/dc/commit/3efccc4cf3752763d049836724f2491c287f65db))
+
 # [6.3.0](https://git.datacontroller.io/dc/dc/compare/v6.2.8...v6.3.0) (2023-12-04)
 
 
diff --git a/package.json b/package.json
index 166b722..f9f20a6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dcfrontend",
-  "version": "6.3.0",
+  "version": "6.3.1",
   "description": "Data Controller",
   "devDependencies": {
     "@saithodev/semantic-release-gitea": "^2.1.0",
diff --git a/sas/sasjs/services/editors/loadfile.sas b/sas/sasjs/services/editors/loadfile.sas
index d11ec30..27df4eb 100644
--- a/sas/sasjs/services/editors/loadfile.sas
+++ b/sas/sasjs/services/editors/loadfile.sas
@@ -146,7 +146,7 @@ select count(*) into: nobs from &syslast;
   ,msg=%str(Issue assigning library &orig_lib)
 )
 
-%global txfrom txto processed;
+%global txfrom txto processed rk;
 
 data _null_;
   set &mpelib..MPE_TABLES;
@@ -154,12 +154,13 @@ data _null_;
   call symputx('txfrom',var_txfrom);
   call symputx('txto',var_txto);
   call symputx('processed',var_processed);
+  if not missing(RK_UNDERLYING) then call symputx('rk',buskey);
 run;
 
 %mp_lockfilecheck(libds=&orig_libds)
 
 data compare;
-  set &libds(drop=&txfrom &txto &processed);
+  set &libds(drop=&txfrom &txto &processed &rk);
   stop;
 run;
 
diff --git a/sas/sasjs/services/hooks/mpe_tables_postedit.sas b/sas/sasjs/services/hooks/mpe_tables_postedit.sas
index 8a1a4fa..d5dbe27 100644
--- a/sas/sasjs/services/hooks/mpe_tables_postedit.sas
+++ b/sas/sasjs/services/hooks/mpe_tables_postedit.sas
@@ -34,6 +34,7 @@ data work.staging_ds;
   var_processed=upcase(var_processed);
   close_vars=upcase(close_vars);
   audit_libds=upcase(audit_libds);
+  rk_underlying=upcase(rk_underlying);
 
   /* check for valid loadtype */
   if LOADTYPE not in ('UPDATE','TXTEMPORAL','FORMAT_CAT','BITEMPORAL','REPLACE')
@@ -47,6 +48,10 @@ data work.staging_ds;
     BUSKEY='TYPE FMTNAME FMTROW';
     DSN=scan(dsn,1,'-')!!'-FC';
   end;
+
+  /* convert tabs into spaces */
+  buskey=translate(buskey," ","09"x);
+  rk_underlying=translate(rk_underlying," ","09"x);
 run;
 
 %mp_abort(iftrue=(&errflag=1)