|AddCustomName(String,String,Int32,Int32)||Adds a custom name to the model using the specified string value.|
|AddCustomName(String,Expression)||Adds a custom name to the model using the specified expression value.|
Custom names are identifiers to represent information in the spreadsheet. A custom name can refer to a cell, a range of cells, a computed value, or a formula. Methods that deal with custom names provide the same functionality as the Name in Microsoft Excel.
The name can contain up to 255 characters and can include letters, numbers, or underscores. The first character must be a letter or an underscore.
For more information on on using custom names in formulas, refer to Custom Names in Formulas.