Try selecting the range that includes the hidden rows and choose Format,
rows, autofit. If a row accidently gets sized as something other than zero,
then unhide won't bring it back.
Good luck!

"Wanna Learn" wrote:

Hello
This only happens in one worksheet. I hid rows and cannot unhide them I
tried unhide rows, edit go to format row unhide, I even tried ungroup rows
and nothing works what did I miss? thanks