Atomic data from the IRON project - XLIX. Electron impact excitation of Fexx

Collisional data between 86 levels of the n = 2 and n = 3 complexes of N-li ke iron are presented. The data have been obtained in a Breit-Pauli relativ istic approximation and include resonance contributions by the use of close -coupling wavefunctions. The R-matrix package described by Hummer et al. (1 993) has been used to solve the close-coupling equations at several thousan d energy points for an extensive target leading to collision strengths accu rate to better than 20%.