Is FILER a Wordle Word?

Yes. FILER is a valid Wordle word.

It is on the original Wordle answer list and has not been an answer yet, so it could be a future answer.

What does FILER mean?

/ˈfaɪlɚ/

One who files something.“Hitherto I have hoarded up mementoes and monuments of the past; been a worshiper of all heirlooms; a fond filer away of letters, locks of hair, bits of ribbon, flowers, […]”
A software program for managing files.“The filer allows users to format and copy disks and to include a run-time UCSD Pascal operating system.”

Definition from Wiktionary, available under the CC BY-SA license.

Starter word rating: AverageIn the top 11% of all valid Wordle words for testing common letters.
Vowels: I, E
Unique letters: 5 of 5
Common letters: I, L, E, R

Hard-mode trap: 7 valid words fit the pattern _ILER. If you reach it, you may need several guesses to find the last letter.

Letter ratings use how often each letter appears in Wordle answers.

Tap its tiles to the colours Wordle showed, and the Wordle Solver lists every word that still fits, with the best next guess.