Dear luzunaris_23863,

Thank you for your question & we're very sorry for your inconvenience.

1. All are in the metric system and I have to work in the imperial system.

=> You mean the size of existed symbols?

We're sorry but we can't support imperial system. Because we don't develop ARCH any more.

2. Also when I try a command appear the following"DBF file open failed"

=> This issue was fixed at 'CADian2023 6.0.10 & CADianARCH 2023-6.0.7.687'.

Please download and use the latest CADian 2023 & CADianARCH THRU. the following link.

1) CADian2023_6.0.29_64bit_Pro.exe

=> https://drive.google.com/file/d/1zMhImn8MFx1RYNr8V2eheTgdOTrWIyl0/view?usp=drive_link

2) CADianARCH 2023-6.0.7.687.exe

=> https://drive.google.com/file/d/1tCDYnbEN1NJahJls90Rv9PfauPA05V3D/view?usp=drive_link