Czuch: You have to have a program allowing you to open pgn files.

Pedro Martínez: er.... okay....

Pedro Martínez: Well, not really :) PGN files are just plain text files and can be opened with any text editor, like Notepad on Windows.

Czuch: You have to have a program which is able to open zip files, like Winrar for Windows.

Even if you already have a zip program on your computer, there may be a problem with the download. From time to time I'm not able to download the zip files completely, which also produces an error message that the file can't be opened. You may try to create the zip file again or you may ask Fencer...

kleineme: Right, but I assumed that Czuch had wanted to download the files in order to replay the game in some pgn viewer. My bad, I shouldn't have assumed anything. :)

kleineme: I did now download winrar, and now I get an error message that the file is either unknown or damaged?

Czuch: First you may try to download the file again. Please compare the file sizes, the one which is shown during the download, and the one of the file on your computer after the download has finished. If the size of the downloaded file is less than the predicted size, then the file wasn't downloaded completely and thus can't be opened. If this happens more than once you may try to create the zip file again. If this doesn't help as well then I don't know either... Probably Fencer could check whether the zip file on the server is OK?

Czuch: I faced this problem too. It just getting corrupted during the download since the connection speed is not good i guess for some reason.
My son solved my problems when he told me to use a download manager to download the file. He installed on my computer the program flashget and if you try to download with it then you will have your file with no problem.

Then you need winzip or winrar to extract the games of the file into PGN format.
Unfortunately for example for Loop Chess the games are 20000 so when you extract them in a folder Windows are very slow to handle and anyway it's just too tough to do anything with them having to open each one separately each time.

So my son saved me again by showing me a way to join all these PGNs with single games, into one big PGN with all the games.
Just create a BAT file and write:
for %%f IN (*.PGN) DO type %%f>>collect.out
ren collect.out FINAL.pgn

Don't ask me what are all these, i don't know. But it does the work.
Then inside the folder with all the games run the bat file and at the end you will have a PGN named final.pgn with all the games. Now you can delete of course all the 20000 single PGNs.

And then you can handle this PGN with ease.

Constellation36: WOW!!! Thanks so much.... when I have more time I will give it all a try!!