Premier Daniel Andrews says his Government has apologised to a woman whose private information was inadvertently made public as part of a massive dump of documents relating to Opposition Leader Matthew Guy's actions as planning minister.

Key points: Labor says the private information was inadvertently included and was removed from the public domain as soon as the issue was discovered

Labor says the private information was inadvertently included and was removed from the public domain as soon as the issue was discovered The Opposition says the Government tabled the documents to divert attention from Labor's misuse of taxpayer-funded electorate staff during the 2014 state election campaign

The Opposition says the Government tabled the documents to divert attention from Labor's misuse of taxpayer-funded electorate staff during the 2014 state election campaign The private information was among 80,000 pages of documents relating to Opposition Leader Matthew Guy's dealings as planning minister in the former Coalition government

The woman's medical history, home address, bank balances, details of her share portfolio and superannuation account and her daughter's name and date of birth were included in 80,000 pages of documents that were tabled in Parliament and posted online this week.

The document dump detailed Mr Guy's 2011 decision to rezone farming land at Ventnor on Phillip Island, which he then repealed amid public backlash. The documents revealed he ordered a $2.5-million settlement with a prospective developer to avoid political damage to his career.

Mr Guy this week defended the settlement, telling reporters that fighting the case in court would have created a "lawyers' picnic".

The Opposition says that by disclosing private information, the State Government has exposed taxpayers to a potential lawsuit.

Mr Andrews today described the disclosure of personal information as "inadvertent" and "unfortunate".

"Obviously in the closing of a file years ago, some documents have been included in there that shouldn't have been," Mr Andrews said.

"We've apologised to the person involved."

No guarantees more personal data wasn't released

The woman whose personal details were exposed told the Herald Sun she did not receive a call from the Premier's office until after 1:00pm — despite Mr Andrews telling reporters the Government had apologised this morning.

The Opposition seized on the newspaper report during a debate to censure Mr Guy over the Ventnor settlement revealed in the document dump.

Opposition spokesman Tim Smith told parliament the Premier had misled Victorians.

"That is a deliberate mistruth," he said.

The Government had the woman's details taken down from the internet after being alerted to the issue last night.

Parliament today voted to give the Speaker of the Legislative Assembly, Colin Brooks, the power to remove personal details from the documents as they are brought to his attention.

The Opposition argued it should be up to the Government to go through the documents, but was defeated in the vote.

The document dump related to Opposition Leader Matthew Guy's time as planning minister. ( ABC News: Stephanie Anderson )

Earlier, the Treasurer, Tim Pallas, said he could not guarantee more people had not had their personal information revealed in the document dump.

"Well, there's 80,000 pages, there's a lot of material to work through," he said.

"The Government's applied as much due diligence to that material as it can."

Taxpayers 'exposed to compensation claims'

Mr Guy told reporters today the Opposition had so far only been through seven of the 32 boxes of documents released this week.

"God knows what other private and personal data on Victorians is now tabled for every Victorian to read in Hansard," he said.

Also reportedly among the documents is health information from a 2013 case against a La Trobe University emeritus scholar, who pleaded guilty to keeping human remains — some of them Aboriginal.

The Shadow Attorney General, John Pesutto, said the release of private information was "outrageous".

"It's exposed Victorian taxpayers to compensation claims on top of other compensation that's paid out under this Government," he said.

"We are very concerned now that because of the privacy breaches here, that individuals have been hurt and adversely affected by this may well have claims against the state of Victoria for what has been done to them.

"This is all because Daniel Andrews wanted to score some cheap political points and mount a distraction to the red shirts rorts," Mr Pesutto said in a reference to Labor's misuse of taxpayer-funded staff during the 2014 state election campaign, which is being investigated by Victoria Police's fraud and extortion squad.

"All he's achieved is something that's massively backfired and, worse, hurt innocent victims along the way."

The Government's decision to table the documents in the penultimate parliamentary session before the November state election is regarded as unconventional, as documents from previous governments are usually considered off limits.