Hi @José Antonio Conde Lanchazo,
Welcome to Microsoft Q&A!
Currently in Microsoft Q&A we only support English, could you please edit your question into English? Then we can help to solve your issues, thanks for your understanding.
Then based on a quick machine translation, you wanted to know how to recover a deleted calendar, right? Are you referring to an entire calendar folder like what is shown below?
If this is the case, it's the same way as recover other items in Outlook for Windows, supposing you are using an Exchange account.
- Switch to Folder view (Ctrl +6).
- Locate the Deleted Items folder, find the deleted calendar.
- Select the calendar, drag and drop it to the Calendar:
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