>I use functions of VFP to open and rewrite many files with any format such as word, excel and form foxpro. I do not edit these files, only open and rewrite. After that, I use MS Word or FoxPro to open these files; as a result I get an error.
>How can I open and rewrite a file which is any format. Please help me.
>

Canh. I am not sure what you are asking but it sounds lke you want to edit files of other applications from within VFP. Each application is storing its files in its own unique format and if you do not adhere to that format then the application will think its file is corrupted. You would need to find out the format Word or Excel store their files in.