I want to transfer files from an old computer to a new computer. Where are the LibreOffice files stored?
I don’t think your question is related to the database frontend Base (this is what your choice of tag base suggests). Please retag as common.
Where you saved them! Nobody can tell but you. And if you want more useful help, mention OS name of old computer (and the one on the new computer too), LO version (old and new).
In case you just trusted default logic in LO, have a look at Tools>Options (or the Preferences menu under MacOS), then LO>Paths to see where files are usually saved (unless you chose an other path while in the save dialog).
Another possibility is to use the OS file browser to search for .odt (text), .ods (spreadsheet), .odg (drawing), or more generally any .od* file on your disk.
It is not quite clear what you mean
- Own files such as ODT ODS etc.
- Files in the user profile.