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File Memory Section 5-1
CSV/TXT Data File
Structure (Single Word)
The following illustration shows the data structure of a CSV data file
(ABC.CSV) with single-word fields containing four words from I/O memory:
1234 Hex, 5678 Hex, 9ABC Hex, and DEF0 Hex. The structure of the TXT file
with single-word fields is the same.
CSV/TXT Data File
Structure (Double Word)
The following illustration shows the data structure of a CSV data file
(ABC.CSV) with double-word fields containing four words from I/O memory:
1234 Hex, 5678 Hex, 9ABC Hex, and DEF0 Hex. The structure of the TXT file
with double-word fields is the same.
Creating Data Files with
Spreadsheet Software
Use the following procedure to create TXT and CSV data files with spread-
sheet software such as Microsoft Excel.
• Set the cell contents to characters.
I/O memory
48 bytes (used by system)
8 bytes
Contents of ABC.IOM
I/O memory
Converted
to ASCII
4 bytes
Delimiter
4 bytes
Delimiter
The file displayed as text.
Contents of ABC.CSV
I/O memory
Converted to
ASCII (Upper
word first)
8 bytes
Delimiter
Contents of ABC.CSV
The file displayed as text.
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