ODF Validation

file line column error
content.xml 2 4303 unexpected attribute "style:keep-together"
META-INF/manifest.xml 2 88 element "manifest:manifest" is missing "version" attribute
styles.xml 2 36226 unexpected attribute "style:layout-grid-snap-to-characters"
styles.xml 2 35031 unexpected attribute "style:layout-grid-snap-to-characters"
styles.xml 2 37596 unexpected attribute "style:layout-grid-snap-to-characters"