diff --git a/src/ods.rs b/src/ods.rs
index 3135843..96a82c2 100644
--- a/src/ods.rs
+++ b/src/ods.rs
@@ -101,8 +101,8 @@ impl std::fmt::Display for OdsError {
             }
             OdsError::Password => write!(f, "Workbook is password protected"),
             OdsError::WorksheetNotFound(name) => write!(f, "Worksheet '{name}' not found"),
-            OdsError::AttrError(e) => write!(f, "XML Attribute Error: {e}"),
-            OdsError::EncodingError(e) => write!(f, "XML Encoding Error: {e}"),
+            OdsError::AttrError(e) => write!(f, "XML attribute Error: {e}"),
+            OdsError::EncodingError(e) => write!(f, "XML encoding Error: {e}"),
         }
     }
 }
diff --git a/src/xlsb/mod.rs b/src/xlsb/mod.rs
index aeaddce..84ffa55 100644
--- a/src/xlsb/mod.rs
+++ b/src/xlsb/mod.rs
@@ -117,7 +117,7 @@ impl std::fmt::Display for XlsbError {
             }
             XlsbError::Password => write!(f, "Workbook is password protected"),
             XlsbError::WorksheetNotFound(name) => write!(f, "Worksheet '{name}' not found"),
-            XlsbError::Encoding(e) => write!(f, "Encoding error: {e}"),
+            XlsbError::Encoding(e) => write!(f, "XML encoding error: {e}"),
         }
     }
 }
diff --git a/src/xlsx/mod.rs b/src/xlsx/mod.rs
index d51c70b..ff2bc21 100644
--- a/src/xlsx/mod.rs
+++ b/src/xlsx/mod.rs
@@ -149,7 +149,7 @@ impl std::fmt::Display for XlsxError {
             XlsxError::Password => write!(f, "Workbook is password protected"),
             XlsxError::TableNotFound(n) => write!(f, "Table '{n}' not found"),
             XlsxError::NotAWorksheet(typ) => write!(f, "Expecting a worksheet, got {typ}"),
-            XlsxError::Encoding(e) => write!(f, "Encoding error: {e}"),
+            XlsxError::Encoding(e) => write!(f, "XML encoding error: {e}"),
             XlsxError::XmlAttribute(e) => write!(f, "XML attribute error: {e}"),
         }
     }