If you use Git as a version control system, you can easily define filters for specific files, as indicated in this answer :
- Define a new filter
*.sln filter=startupitemin a local file .gitattributesor globally in .git/info/attributes. git config filter.startupitem.clean "sed '/StartupItem\ =\ .*.csproj/'d" . ( --global.)
Git - . , .
, Xamarin - . , . Xamarin *.sln.