The most common and most likely answer to this crossword clue is the 8 letter word AUTOSAVE
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More clues leading to the result AUTOSAVE
Buddy explains!

The straight part
We know that "Computer facility" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case computer facility = autosave.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does AUTOSAVE mean?
AUTOSAVE noun- A software facility that saves an open document periodically to avoid the risk of data loss.
- A copy of a file or document saved automatically by such a facility.
- To save (data) automatically.