Legacy Platform documentation

User Defined Functions (UDF)

Create and deploy user-defined functions for the SpreadsheetWeb Legacy Platform to add custom workbook calculations and reusable logic.

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User-defined functions extend the calculation capabilities available to Legacy Platform workbooks. Use this section to understand how custom functions are implemented, deployed, and made available to applications that require logic beyond the built-in formula set.

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User Defined Functions (UDF) guides

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C# User-Defined Functions (UDF)Create C# user-defined functions for SpreadsheetWeb Legacy applications, configure required assemblies and directives, and resolve compilation errors.