Hey and thanks fot the help:
Problem: my hard drive crashed, but i had a backup of the whole drive, therefore i still have the MAMP folder with all the files.
I used MAMP on Win10 and Joomla.
Now i don't understand, how I can restore the web page. I tried to copy the mysql and the htdocs into the newly installed MAMP folder.
Just to know: i don't have a real backup or an exported database, just the whole MAMP folder
This way the localhost site is a blank one...
Can someone help me, how I can restore the webpage or is it gone?
Just as a note: I'm a newbee to all of this...