assuming you already cloned your repository in a local directory and already made the checkout of the branches, just move to that directory, add the file, commit your changes and push:
(1)
system('git add <fileName.extension>');
system('git commit -m "<message-to-Commit>"');
system('git push');
if the assumption is not correct, i guess that you have a local branch with no upstream. In this case you can either:
system('git branch --set-upstream-to <remote-branch>') %then add,commit,push
or change the push command in (1) with:
system('git push -u origin local-branch') %git remote -v to find your remotes, the default one is origin usually
Note:
if in (1) you want to programmatically set the name of the excel file refer to this question to get the name of the latest generated file. Then strcat the add command with the name.
Same goes for the commit, just strcat the command and the message together.
