Only you can access your tax returns.
To access your prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/
Start the 2024 online tax return by entering some personal information then click on Tax Home on the left side of the screen.
On the Tax Home webpage -
Scroll down to the section Your tax returns & documents. Click on the Year and Click on Download/print return (PDF)
If you used the desktop CD/Download editions installed on your computer, the only copy of your tax data file and any PDF's will be on the computer where the return was created. TurboTax does not store online any returns completed using the desktop editions.
You asked about "the company taxes." If the company is a multi-member LLC, partnership, S corp, or C corp, that filed Form 1065, 1120, or 1120-S, you could not have used TurboTax Online. You would have to have used TurboTax Business on a Windows computer. In that case, as DoninGA said, the only copy of the tax return would be on the computer that you used, or any backup copies that you made. TurboTax does not have a copy of a business tax return that you prepared with TurboTax Business.