My version of Mac OS is 11.7 and my MAC will not go to 12.0. SO, the download that I installed for 2023 will not run on my MAC. What do I do to get it running?

If you cannot upgrade to Mac OS 12.0 or higher you can request a refund of the TurboTax software purchase

Use this TurboTax website to request a refund - https://accounts.intuit.com/app/oirr

Use this TurboTax website to look up a charge - https://accounts.intuit.com/app/oicl

You can still use the TurboTax online editions for tax year 2023 if you choose to do so 

Go to this TurboTax website for the online editions - https://turbotax.intuit.com/

If you completed a 2022 tax return using your Mac with TurboTax, the tax data file for 2022 can be transferred to the 2023 online tax return.

See this TurboTax support FAQ for transferring the prior year from a computer to the online tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/transfer-last-year-return-turbotax-online/L279eUvY2_US_en_US?uid=lr59ud8x