How to open a Simply 2010 DB and modify content if possible?

SOLVED

Hello,

I was wondering about what tools are available to open and browse a Simply 2010 DB.

And also to modify some data. For example some transactions from 2 years ago where not allocated to Projects and there is no way to lookup this entry and adjust any longer.

I search teh Mysql website and saw the Workbench and other Windows Tools but they are more recent than whatever Mysql version is intalled with Simply: is it safe to install these tools without overriding the existing Simply installation? 

Thank you!

Isabel