The style:writing-mode attribute specifies the writing mode that should is used for the table.

no instruction about writing mode in open office help document. but it did support some kind of writing mode.

in writing-mode attribute specified in 7.27.7 of Extensible Stylesheet Language [XSL]: Values have the following meanings:

• lr-tb: Inline components and text within a line are written left-to-right. Lines and blocks are placed top-to-bottom.
• rl-tb: Inline components and text within a line are written right-to-left. Lines and blocks are placed top-to-bottom.
• tb-rl: Inline components and text within a line are written top-to-bottom. Lines and blocks are placed right-to-left.
• lr: Shorthand for lr-tb.
• rl: Shorthand for rl-tb.
• tb: Shorthand for tb-rl.