| Technology Archive Reference - X |
| X2B | Hexadecimal to Binary |
| X2C | Hexadecimal to Character (REXX) |
| X2D | Hexadecimal to Decimal |
| XDF | Extended Density Format (used in 3.5 Inch and 5.25 disks) |
| XNS | Xerox Network Systems |
| XLS-FO | XSL-Formatting Objects |
| Technology Terms and Abbreviation => X |
| Technology |
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