Version: (using KDE Devel) Installed from: Compiled sources KSpread currently breaks Unicode. See Bug 143530 for details. In short, KSpread doesn't consider equivalent what Unicode defines as equivalent. For example if a sheet has the string "é", searching "é" doesn't find it to match. Yet "é" and "é" are the 'same' string for Unicode. I don't know whether this could be fix at a library level accross Koffice apps.