Hello all friends Please tell me the way to open the Gambit 2.0.14 in Gambit 2.0.0 and Fluent 6.2.0 in 6.1.0 .

o yaa this is very much possible, in fact fluent6.2 has ways to open fluent7 files. Its easy just open it.

No my problem is reverse the file is made in Version 6.2 and it is to be open in version 6.1 same as gambit File made in 2.0.0 and it is to be open in 2.0.14

well that is the whole problem, how the lower version know the format of higher version. Anyway since your gambit version has not changed significantly there is one way you can get the things in lower dbs. Do one thing, open the jou file on text editor, removed all the save commands and the commands with identifier in it. That means you have removed all things those write or save, so that it shall not overwrite the existing file. Now open the older gambit and run the journal. In the end you shall get exactly same things as your newer version file. Save it and work. This will only work if the syntax has not changed in gambit versions you are talking. Best of luck.