No.   The desktop software versions do not "talk" to each other.  You would have to move data by using a flash drive, etc.    If you try to work on the same tax return on a Mac and on a PC you will just have a mess.   Stick with one or the other.   When you use desktop software, the tax file is stored locally on your own hard drive.   

The tax data files that are saved on each computer cannot be accessed from another computer. 

Well yes.   They both use the same .tax2023 data file.  But you would have to copy it back and forth each time.  Which will make a mess if you don't keep track of which one is the real current file.  It would be easy to get out of sync.  We strongly recommend you don't try it.  But if you are only doing a one way move one time you can.  

Thanks for you reply

The file would be stored in a cloud folder (OneDrive) accessible from both computers.

So, my question boils down to whether I can open that cloud-stored file from either computer--as I have done in the past when I had two Window computers.

I'd be storing the file in a cloud folder.

As I replied in other posts the file will be stored in the cloud, so that mean I'd always be accessing the latest saved version. Yes?

@DoninGA  Not completely true. I network my computers both windows PC's and can store the tax file on computer A and still access from computer B. the program must be installed on both computers. 

@Mike9241 Thanks, Mike...