Faq/Calc/037

I want to write abc in a cell and LibO prevents me from doing so
There are two possible cases:
 * LibreOffice systematically capitalises the letter at the beginning of the word: you need to deactivate this autocorrection see here;
 * You have already written Abc in another cell. You now need to deactivate the Autoinput function. Go to and uncheck it.