We found one dictionary that defines the word .arj files:

Computing (1 matching dictionary)

1. .ARJ files: Computer Telephony & Electronics Dictionary and Glossary

▸ Words similar to .arj files ▸ Usage examples for .arj files ▸ Idioms related to .arj files ▸ Wikipedia articles (New!) ▸ Words that often appear near .arj files ▸ Rhymes of .arj files ▸ Invented words related to .arj files