• ?Q? – files that are compressed, often by the SQ program.
• 7z – 7-zip compressed file
• A – an external file extension for … See more

• Msi – Windows installation file
• Vdhx – Virtual disk created by Hyper-V (Hyper-V runs on Microsoft Windows) See more

Computer-aided is a prefix for several categories of tools (e.g., design, manufacture, engineering) which assist professionals in their respective fields (e.g., machining, architecture, schematics).
Computer-… See more

• 4DB – 4D database Structure file
• 4DC – 4D database Structure file (compiled in legacy mode)
• 4DD – 4D database Data file
• 4DIndy – 4D database Structure Index file… See more

• Avro – Data format appropriate for ingestion of record based attributes. Distinguishing characteristic is schema is stored on each row enabling schema evolution.
• Parquet – Columnar data storage. It i… See more

• AI – Adobe Illustrator
• AVE, ZAVE – Aquafadas
• CDR – CorelDRAW
• CHP, pub, STY, CAP, CIF, VGR, FRM – Ventura Publisher – Xerox (DOS / GEM)… See more