diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 86d6f5b..5c52c96 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,3 +1,8 @@
+0.4.1 - November 20, 2023
+-------------------------
+
+* fix: :meth:`.Table.from_xlsx` no longer errors on unsized sheets.
+
 0.4.0 - November 7, 2023
 ------------------------
 
diff --git a/agateexcel/table_xlsx.py b/agateexcel/table_xlsx.py
index aa62f69..a522d95 100644
--- a/agateexcel/table_xlsx.py
+++ b/agateexcel/table_xlsx.py
@@ -72,7 +72,10 @@ def from_xlsx(cls, path, sheet=None, skip_lines=0, header=True, read_only=True,
         offset = 0
         rows = []
 
-        if read_only and (reset_dimensions or reset_dimensions is None and sheet.calculate_dimension() == 'A1:A1'):
+        if (
+            read_only
+            and (reset_dimensions or (reset_dimensions is None and sheet.max_column == 1 and sheet.max_row == 1))
+        ):
             try:
                 sheet.reset_dimensions()
                 sheet.calculate_dimension(force=True)
diff --git a/docs/conf.py b/docs/conf.py
index f82fc3b..c181b33 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -12,7 +12,7 @@
 
 project = 'agate-excel'
 copyright = '2017, Christopher Groskopf'
-version = '0.4.0'
+version = '0.4.1'
 release = version
 
 # -- General configuration ---------------------------------------------------
diff --git a/examples/covid_19-iss.xlsx b/examples/covid_19-iss.xlsx
new file mode 100644
index 0000000..d7c082b
Binary files /dev/null and b/examples/covid_19-iss.xlsx differ
diff --git a/examples/ne_1033_data.xlsx b/examples/ne_1033_data.xlsx
new file mode 100644
index 0000000..595d201
Binary files /dev/null and b/examples/ne_1033_data.xlsx differ
diff --git a/setup.py b/setup.py
index 995aa83..192b5cc 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name='agate-excel',
-    version='0.4.0',
+    version='0.4.1',
     description='agate-excel adds read support for Excel files (xls and xlsx) to agate.',
     long_description=long_description,
     long_description_content_type='text/x-rst',
diff --git a/tests/test_table_xlsx.py b/tests/test_table_xlsx.py
index 80b78e8..d7fb947 100644
--- a/tests/test_table_xlsx.py
+++ b/tests/test_table_xlsx.py
@@ -137,3 +137,16 @@ def test_row_limit_too_high(self):
         self.assertColumnNames(table, self.column_names)
         self.assertColumnTypes(table, [agate.Number, agate.Text, agate.Boolean, agate.Date, agate.DateTime])
         self.assertRows(table, [r.values() for r in self.table.rows])
+
+    def test_from_xlsx_unsized(self):
+        table = agate.Table.from_xlsx('examples/ne_1033_data.xlsx')
+
+        self.assertEqual(len(table.columns), 14)
+        self.assertEqual(len(table.rows), 1036)
+
+    def test_from_xlsx_size_1(self):
+        # https://github.com/wireservice/csvkit/issues/1129
+        table = agate.Table.from_xlsx('examples/covid_19-iss.xlsx')
+
+        self.assertEqual(len(table.columns), 18)
+        self.assertEqual(len(table.rows), 46)