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How to read external local folder

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I've recently changed my PC and need to access messages on a local folder of my old PC. The only slight problem is that I don't have the old PC anymore! I do however have the hard drive from my old PC set up as an external drive on my new PC. I can navigate to the local folder on the external drive but I can't read the messages in English. Is there any way to do this? TIA.

I've recently changed my PC and need to access messages on a local folder of my old PC. The only slight problem is that I don't have the old PC anymore! I do however have the hard drive from my old PC set up as an external drive on my new PC. I can navigate to the local folder on the external drive but I can't read the messages in English. Is there any way to do this? TIA.

Chosen solution

Are these messages in the Mail/Local Folders location of the old profile folder, in .../AppData/Roaming/Thunderbird/Profiles/xxxxxxxx.default, where xx.. is a random string? If they are, copy the mbox files, the large files with no extension, named after folders, to Mail/Local Folders in the active profile, then restart TB and look under Local folders in the Folder Pane.

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Seçilmiş Həll

Are these messages in the Mail/Local Folders location of the old profile folder, in .../AppData/Roaming/Thunderbird/Profiles/xxxxxxxx.default, where xx.. is a random string? If they are, copy the mbox files, the large files with no extension, named after folders, to Mail/Local Folders in the active profile, then restart TB and look under Local folders in the Folder Pane.

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Thanks sfhowes, that's worked perfectly!