Can not open password encrypted CALC/XLS file
I have opened a password encrypted XLS file (Excel 2016) with Libre Office 5.3. Opening is no problem. After some changes I stored the file in Excel 1997-2003 format. When I try to open the file again with Libre Office, a password is requested, but when entering the correct password from the original XLS file I get the message "Password is not correct". As consequence, I can not open the fle anymore, neither with Libre Office nor with Excel.