File Extension

FILE File Format

AS/400 physical file

FILE is a file extension for a physical file format used by IBM’s AS/400 server system introduced in 1987. AS/400 was replaced by IBM Power Systems in 2008.

FILE is also a generic extension added to a file without a valid extension in Windows systems. 

Learn more about FILE files:

Search400.com provides learning resources and expert advice on file sharing among systems.

User Walter47 answers ‘How to convert a physical FILE to a flat file’ for user A1b2c333 at IT Knowledge Exchange.

See a range of AS/400 -related questions and answers at IT Knowledge Exchange.

This was last updated in July 2010
Editorial Director Margaret Rouse

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  • Getting less records in physical file

    Check the file you are reading to see if any SELECT / OMIT criteria is defined in the DDS. This may be reducing the total record count for the job you are running. 

  • AS/400 - CSV files

    It may be that one of your data columns has a comma in it causing the 6th column.Something like city and state in one field. Toledo,OH would split into 2 separate columns.

  • AS/400 RPG: How to use FRF in programs

    Think about it. Where do you use the REFFLD reserved word ??? That is where you would specify the reference file.  You would never put the reference file in your source code.

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