Are you trying to open a project with the xml extension in BAS? Probably your project is damaged, you did not edit it manually using text editors? Try to restore it from backups located here:
C:\Users\User\AppData\Roaming\BrowserAutomationStudio\projectbackups
Hi, did you solve this problem? I also encountered this problem. The data in a table is separated by multiple commas, so BAS cannot determine the correct separation position.