APL file transfer format
File type: Various data file
An aio file extension is associated with the A Programming Language.
Found 2 different file type records with the same aio filename suffix.
File type category:
Various data file
Date updated: December 21, 2016
Record marked as obsolete and not updated for a long time.
The aio file extension is related to APL (A Programming Language), a programming language developed by Ken Inversion from IBM in 1960.
The aio file contains data for file transfering.
Most likely no longer used.
File type category:
Bitmap image file
Date updated: October 4, 2026
An AIO file is a bitmap image used by Axialis IconWorkshop, an icon-editing application from Axialis.
The format appears to be obsolete and may no longer be actively documented or supported by its developer. Axialis IconWorkshop for Microsoft Windows is the software associated with creating or opening these files.
On Microsoft Windows, open the file with Axialis IconWorkshop. If the file is not associated with the program, start IconWorkshop and use its Open command to select the AIO file.
Open the AIO file in Axialis IconWorkshop and export or save the bitmap in one of the image formats supported by that version of the program.
Software applications that handle other tasks involving aio files:
Microsoft Windows
Language
