windows 11, TB MSIX ver 1.0, where are the sent items, draft and deleted files?

I think this is the rough location: Users\username\AppData\Local\packages\MozillaThunderbird.MZLA_h5892qc0xkpca\LocalCache\Roaming\Thunderbird\

ok, how do i get the sent items, deleted items, draft items and spam folders onto my thunderbird side bar ?

More information may help. Did you previously have thunderbird on the pc and recently installed again? If so, it may be that your first install was from thunderbird.net and the second from microsoft. Is your addressbook okay? Try this:: click help>troubleshootinginformation, scroll to 'profile folder' and click 'open folder' and let me know what you see. thank you

One more item: enter %appdata% in windows search bar and press enter key. That should open to the appdata\roaming folder. Is there a Thunderbird folder there? If so, that may be where your data are.

checked %appdata%. there are no files there for sent, draft, deleted items> But why are these files not showing up on the Thunderbird page when i open it like previous versions?

Let's back up a bit. Is this a POP or IMAP account? Are the folders not visible in the account in left side bar? Or are you wanting to find their location on the harddrive? A screenshot of the account's location within the profile may help. IMAP accounts are in the imapmail folder and POP accounts are in the Mail folder.