: Open the file in Notepad , select Save As , and change the Encoding to ANSI .
For further assistance, you can search for similar cases on the Bentley Communities Forum or consult the STAAD.Pro Readme for known issues. This is not a Valid STAAD Command file... - Communities This Is Not A Valid Staad Command File
: If the error persists across all files, it may be a software glitch. Try renaming the STAAD.Pro CONNECT Edition folder in C:\Users\[Username]\AppData\Local\Bentley\Engineering\ to force a reset of your local configuration. : Open the file in Notepad , select