What is reference file

A reference file is mainly used for reference or look-up purposes. Look-up information is that information that is stored in a separate file but is required during processing.

Explanation:

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A reference file is mainly used for reference or look-up purposes.

Explanation:

Look-up information is that information that is stored in a separate file but is required during processing.

do not use any of these common illegal characters/symbols:

# pound

% percent

& ampersand

{ left curly bracket

} right curly bracket

\ back slash

< left angle bracket

> right angle bracket

* asterisk

? question mark

/ forward slash

  blank spaces

$ dollar sign

! exclamation point

' single quotes

" double quotes

: colon

@ at sign