| Subject | English | Welsh |
| comp., MS | Excel add-in | ategyn Excel (Components that can be installed on your computer to add commands and functions to Excel. These add-in programs are specific to Excel. Other add-in programs that are available for Excel or Office are Component Object Model (COM) add-ins) |
| comp., MS | Excel Calculation Server | Gweinydd Cyfrifiad Excel (The core component of the Excel Server that includes the full Excel calculation functionality. It loads and saves Excel workbooks, queries and refreshes external data, calculates workbooks, and provides the calculated results to the caller) |
| comp., MS | Excel Calculation Services | Gwasanaethau Cyfrifo Excel (The main Excel Services component, which loads the spreadsheet and workbook, calculates the spreadsheets, updates external data, and maintains session state for interactivity) |
| comp., MS | Excel Cube Functions | Ffwythiannau Ciwb Excel (Functions used to extract and display OLAP data (sets and values)) |
| comp., MS | Excel Mobile Viewer | Dangosydd Symudol Excel (A viewer that allows users to display Excel workbooks on a phone's browser. A file is rendered as an HTML page with sufficient fidelity to convey important data or charts and illustrations) |
| comp., MS | Excel table | Tabl Excel (A range of cells in a worksheet that has been formatted as a table and can be managed independently from the data in other rows and columns on the worksheet) |
| comp., MS | Excel Web Services | Gwasanaethau Gwe Excel (The Excel Services component that provides programmatic access to its Web service) |
| comp., MS | Excel XML Format | Fformat XML Excel (The formal name for Excel 12 file format. The Excel XML Format has an open, royalty-free specification, and is the technology licensed to external parties) |