By Annemarie Evans, Hong Kong
The fight over Nina Wang's fortune last month in the High Court captivated the Hong Kong public.
Feng shui master Tony Chan, Nina Wang's former lover, claimed her estimated $4.2bn estate based on a will allegedly written in 2006.
But the High Court deemed it a fake and awarded her estate to the Chinachem Charitable Foundation, run by Ms Wang's family.
Tony Chan was subsequently arrested and is out on bail until June.
His 2006 will is to be tested to see if it is a fake. Mr Chan, on Friday, filed an appeal in Hong Kong.
He said earlier the will was genuine and was given to him personally by Ms Wang.
During the hearings in the High Court earlier this year Tony Chan presented the pigtails of the late eccentric billionairess known for her plaited hair and miniskirts and nicknamed Little Sweetie.
He also gave diary dates of their alleged sexual trysts.
The battle of the wills has eery echoes of how Nina Wang fought with her father-in-law over her husband's fortune.
Her husband, chemical magnate Teddy Wang was kidnapped twice, the second time in 1990, when he didn't return.
Nina Wang was accused of forging her husband's will, and the estate initially went to her father in law, but that ruling was overturned and she received his fortune in 2005. Nina Wang died in 2007, the owner of high-rise towers and companies around the world.