Hidden links in workbook from nowhere

Thank you for taking a look.

I have a pretty simple file now that was built on a basis of an old complex file with a lot of links. In this testing file, Alpha (PF recast 11 09_f.xlsm in attachments) there is only 1 value, which refers via formula to 1 value of another workbook. The second workbook (Beta) (Book1 in attachments) is completely new, and can be any book you can create. I just added there one value.

Issue: when I'm opening workbook Alpha, I have a lot of popups that appear after the button in "Update links" window was clicked, or when I trigger "Enable Content". Popups like this (screenshots in attachments) with links to other strange old workbooks and with old paths. I can't understand where should I start searching for reasons of this if I already broke all links in the workbook Alpha, which were there, cleaned up all macro were contained, and have only one link to a fresh workbook Beta (which have no connection with links you can see in popups).