Stella live mail converter software have ability to restore your corrupted live mail calendar into any format like as: EML/HTML/PST/MSG/MBOX/Office 365 etc. and it will support all versions of PST file.
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https://www.stelladatarecovery.com/blog/email-recovery/how-to-recover-windows-live-mail-201-6-calendar-by-stella-windows-live-mail-calendar-recovery-software/