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Each line in the file has an identifier, like ID1, CA2, CA3, etc. This identifies what type of data the line will provide. Then each data field in each line is delimited by *. Therefore, there are 5 data fields in the ID1 line of this sample DEX file. In this case, the second data element of the ID1 line, commonly referred to as the ID102 field, is EASY1 REV/01.17 MODE/8100 CS/01 MT/01. This identifier is telling VendMAX that the file has been read from an Easy1 audit box, manufactured by Audit Systems Company. Each equipment manufacturer has registered a specific identifier which will alert the computer system as to where the file originated.
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