This Is Not A Valid Staad Command File Verified • Ultimate
In Notepad, look at the absolute first line. It must be one of the following:
This issue typically arises when a file is saved with encoding, but the STAAD.Pro engine expects the older, simpler ANSI encoding. The invisible Byte Order Mark (BOM) that UTF-8 uses to identify itself confuses the STAAD command parser. This Is Not A Valid Staad Command File