error handling OPENROWSET

If, for example, i have inside a procedure the next statement:
EXEC ('SELECT TOP 0 id1 as id1, *
FROM OPENROWSET(''MSDASQL'', ''Driver={Microsoft Visual FoxPro Driver};
UID=;PWD=;SourceDB=' + @.path + ';
SourceType=DBF;Exclusive=No;BackgroundFetch=Yes;
Collate=Machine;Null=Yes;Deleted=Yes;'', ''
SELECT * FROM ' + @.file + '
'')')

in some ocasions it will generate errors
- if no file or path,
- if no column, ...
how can i handle those errors and continue the procedure without generating an error.Error for "no column" when does that occur ? Only way i cna think of is if the file doe not exist.

To check if the file or path exists

declare @.Path varchar(128)
declare @.FileName varchar(10)

--i used 10 chars because foxpro2.6 allows only length of 10 for a filename and i am not sure what visual fp uses (also fp2.6 doesn't like spaces in path if that matters in your situation)

select @.Path = 'C:\', @.FileName = 'myfile.dbf'
declare @.i int
declare @.File varchar(1000)

select @.File = @.Path + @.FileName
exec master..xp_fileexist @.File, @.i out
if @.i = 1
EXEC ('SELECT TOP 0 id1 as id1, *
FROM OPENROWSET(''MSDASQL'', ''Driver={Microsoft Visual FoxPro Driver};
UID=;PWD=;SourceDB=' + @.path + ';
SourceType=DBF;Exclusive=No;BackgroundFetch=Yes;
Collate=Machine;Null=Yes;Deleted=Yes;'', ''
SELECT * FROM ' + @.file + ''')')
else
print 'no file'