Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] uncertainty unchanging cells (Solver) underscore (_) Undo 2nd macros and ungrouping data shapes worksheets unhiding worksheets union operator (comma) units ( scales ) display unlinking from databases unlocking cells updating inter-workbook references UPPER() function useful life (assets) user accounts user name users |