diff --git a/pyuno/qa/pytests/testcollections_XCellRange.py b/pyuno/qa/pytests/testcollections_XCellRange.py
index 3f610ca3485c..641482433375 100644
--- a/pyuno/qa/pytests/testcollections_XCellRange.py
+++ b/pyuno/qa/pytests/testcollections_XCellRange.py
@@ -348,7 +348,7 @@ class TestXCellRange(CollectionsTestBase):
         self.assertEqual(0, rng.RangeAddress.StartRow)
         self.assertEqual(0, rng.RangeAddress.StartColumn)
         self.assertEqual(0, rng.RangeAddress.EndRow)
-        self.assertEqual(1023, rng.RangeAddress.EndColumn)
+        self.assertEqual(16383, rng.RangeAddress.EndColumn)
 
         spr.close(True)
 
@@ -369,7 +369,7 @@ class TestXCellRange(CollectionsTestBase):
         self.assertEqual(0, rng.RangeAddress.StartRow)
         self.assertEqual(0, rng.RangeAddress.StartColumn)
         self.assertEqual(0, rng.RangeAddress.EndRow)
-        self.assertEqual(1023, rng.RangeAddress.EndColumn)
+        self.assertEqual(16383, rng.RangeAddress.EndColumn)
 
         spr.close(True)
 
diff --git a/sc/inc/address.hxx b/sc/inc/address.hxx
index 18bd11049e92..13cfd9c408c2 100644
--- a/sc/inc/address.hxx
+++ b/sc/inc/address.hxx
@@ -60,7 +60,7 @@ const SCSIZE   SCSIZE_MAX   = ::std::numeric_limits<SCSIZE>::max();
 
 // Count values
 const SCROW       MAXROWCOUNT    = 1048576;
-const SCCOL       MAXCOLCOUNT    = 1024;
+const SCCOL       MAXCOLCOUNT    = 16384;
 const SCCOL       INITIALCOLCOUNT = 64; // initial number of columns we allocate memory for
 /// limiting to 10000 for now, problem with 32 bit builds for now
 const SCTAB       MAXTABCOUNT    = 10000;
@@ -82,7 +82,7 @@ const SCTAB       MAXINITTAB = 1024;
 const SCTAB       MININITTAB = 1;
 
 inline constexpr OUStringLiteral MAXROW_STRING(u"1048575");
-inline constexpr OUStringLiteral MAXCOL_STRING(u"AMJ");
+inline constexpr OUStringLiteral MAXCOL_STRING(u"XFD");
 inline constexpr OUStringLiteral MAXROW_JUMBO_STRING(u"16777215");
 inline constexpr OUStringLiteral MAXCOL_JUMBO_STRING(u"XFD");