Files structure
First column must contain x values, y values are filled from the next columns. First row is used to fill series names.
| X values | Series 1 name | Series 2 name | ... | Series n name |
|---|---|---|---|---|
| x1 | 1 | 10 | ... | 0.456 |
| x2 | 2 | 20 | ... | 0.123 |
| x3 | 3 | 30 | ... | |
| ... | ... | ... | ... | ... |
| xm | 9 | 90 | ... | 0.789 |