1.7.10 MCreator Broken Mod Exporting?(I know it's a old version, but please read this.)

So, for the sake of trying to make a simple mod for a 1.7 server i'm a part of I realized 1.7 MCreator was still downloadable(Version think its called 1.7.3?). So the application is outdated sure, but still seems to work. However upon completing my tiny mod I try and export it and it constantly exports all workspaces, I think, into 1 mod which is now breaking it cause the first workspace is filled with a old mod I tried long ago to make that doesn't work. Am I exporting in the 1.7.10 application wrong? Or am I doing it right but somehow enabling all workspaces to export? I know, 1.7.10 was a long time ago for most players and modders out there, but if anyone remembers the proper way to export a mod I would appreciate the help.

Of course there is the possibility that its a old application and no longer works right. If that is the case would someone who knows for sure put me out of my misery and just tell me that?