Executing the utility is easy, just follow these steps:
Open the folder where the utility files were extracted.
(Optional) Open a command prompt at that location.
Execute the utility by running the program: vera.jira.cloud.migration.utility.exe
Note: the utility supports two arguments: skip_export and skip_import
Running the utility with the skip_export argument (e.g. vera.jira.cloud.migration.utility.exe skip_export) will cause the utility to not attempt to export project fields from Jira Server.
Running the utility with the skip_import argument (e.g. vera.jira.cloud.migration.utility.exe skip_import) will cause the utility to not attempt to import project fields to Jira Cloud.