Those that are using TortioseGit UI click Right Mouse on the file (or folder) you want to ignore ->
Delete and add to ignore list, here you can choose to ignore all files of that type or this specific file -> dialog will pop out Click
Ok and you should be done.
For those that are using UI to branch click Right Mouse on repository then
Tortoise Git ->
New window will open ->
Give branch a name -> Tick the box
Switch to new branch (Chances are you want to start working with it after branching). -> Click
OK and you should be done.
If a file is changed, but you don't like to commit it, set the file as "Assume unchanged"
Need some steps:
This won't work if there are merge commits in your selection
Start the rebase dialog: