A DIF (Data Interchange Format) file created by Microsoft Excel
differs from one created by Lotus 1-2-3. This may pose a problem for
those programs such as Charting Gallery, which require imported data
to be Lotus DIF compatible.
All parts of Lotus and Excel DIF files are similar except for the
VECTORS and TUPLES entries. The following table would create the
respective VECTORS and TUPLES entries in a DIF file:
| A | B | C | D |
| 1 | | 1989 | 1988 | 1987 |
| 2 | MARY | 10 | 8 | 5 |
| 3 | SAM | 9 | 8 | 6 |
| EXCEL | LOTUS |
| VECTORS | 0,3 | 0,4 |
| TUPLES | 0,4 | 0,3 |
In order to make the Microsoft Excel DIF file compatible with the
Lotus format, use a text editor and swap the VECTORS and TUPLES number
entries.