diff --git a/Elwig/Helpers/Export/Ods.cs b/Elwig/Helpers/Export/Ods.cs
index 7513f42..eb39416 100644
--- a/Elwig/Helpers/Export/Ods.cs
+++ b/Elwig/Helpers/Export/Ods.cs
@@ -137,6 +137,8 @@ namespace Elwig.Helpers.Export {
                    <number:hours number:style="long"/><number:text>:</number:text><number:minutes number:style="long"/><number:text>:</number:text><number:seconds number:style="long"/>
                   </number:date-style>
                   <style:style style:name="datetime" style:family="table-cell" style:parent-style-name="default" style:data-style-name="_datetime"/>
+                  <number:boolean-style style:name="_boolean"><number:boolean/></number:boolean-style>
+                  <style:style style:name="boolean" style:family="table-cell" style:parent-style-name="default" style:data-style-name="_boolean"/>
                  </office:automatic-styles>
                  <office:body>
                   <office:spreadsheet>
@@ -280,6 +282,9 @@ namespace Elwig.Helpers.Export {
             string c;
             if (data == null) {
                 c = $"<{ct}{add}/>";
+            } else if (data is bool b) {
+                add = string.Join(' ', add.Split(' ').Select(p => p.StartsWith("table:style-name=") ? $"table:style-name=\"boolean\"" : p));
+                c = $"<{ct} office:value-type=\"boolean\" calcext:value-type=\"boolean\" office:boolean-value=\"{(b ? "true" : "false")}\"{add}><text:p>{(b ? "Ja" : "Nein")}</text:p></{ct}>";
             } else if (data is DateOnly date) {
                 add = string.Join(' ', add.Split(' ').Select(p => p.StartsWith("table:style-name=") ? $"table:style-name=\"date\"" : p));
                 c = $"<{ct} office:value-type=\"date\" calcext:value-type=\"date\" office:date-value=\"{date:yyyy-MM-dd}\"{add}><text:p>{date:dd.MM.yyyy}</text:p></{ct}>";
@@ -299,6 +304,7 @@ namespace Elwig.Helpers.Export {
                         case "€": n = 2; data = $"{v:N2}"; break;
                         case "°KMW": n = 1; data = $"{v:N1}"; break;
                         case "°Oe": n = 0; data = $"{v:N0}"; break;
+                        case "m²": n = 0; data = $"{v:N0}"; break;
                     }
                     if (n >= 0) add = string.Join(' ', add.Split(' ').Select(p => p.StartsWith("table:style-name=") ? $"table:style-name=\"N{n}\"" : p));
                 }