Can I open a saved tax file (*.tax2020) [created with turbotax desktop] on a new computer without the downloaded software, using turbotax online?

Help  .  Did taxes on borrowed computer with downloaded turbotax 202 premier.  Have e mailed myself the tax file to my own computer with its firewall (unable to download the software)

  Can i now open that .tax2020 file using the online version of turbotax?  I dont seem to be able to

thanks