The line style affects the appearance of lines in the Microsoft Excel 97 file format (BIFF8) and earlier versions, with specific styles having different representations across versions.

For BIFF8, the styles are as follows:

• 0 - Solid
• 1 - Small Dash (No equivalent in Excel 2000 menu)
• 2 - Square Dot
• 3 - Small Dash, Square Dot (No equivalent in Excel 2000 menu)
• 4 - Small Dash, Square Dot, Square Dot (No equivalent in Excel 2000 menu)
• 5 - Loosely spaced Square Dot (No equivalent in Excel 2000 menu)
• 6 - Dash
• 7 - Long Dash
• 8 - Dash Dot
• 9 - Long Dash Dot
• 10 - Long Dash Dot Dot
• 11 - Round Dot

For versions 3, 4, 5, and 7, the styles are:

• 0 - Solid
• 1 - Long Dash
• 2 - Dash
• 3 - Long Dash Dot
• 4 - Long Dash Dot Dot
• 5 - Pattern 50% Solid (No equivalent in Excel 2000 menu)
• 6 - Pattern 75% Solid (No equivalent in Excel 2000 menu)
• 7 - Pattern 25% Solid (No equivalent in Excel 2000 menu)
• 15 - Transparent (No Line)

Note: Version 2 does not support lines.