A sample bend table for sheet metal operations is provided in <install_dir>\lang\english\Sheetmetal Bend Tables\sample.btl. To create your own bend table, copy and edit this bend table with any text editor.
Bend tables created as a text file support the following:
All bend table types (bend deduction, bend allowance, and k-factor).
All units of measure (meters, millimeters, centimeters, inches, and feet). Set the unit of measure in the Units row of the bend table.

A few items to note about bend tables in a text file:
The sample bend table is provided only for informational purposes. The values in this table do not represent any actual bend allowance values.
If the thickness of the part or bend angle falls between values in the table, the software interpolates the values to calculate the bend allowance.