How to resolve an error importing an Excel file into a SQL Server 2005 table: " is not a valid name. Make sure that it does not include invalid characters or punctuation?

I am creating an Access applicaton with an APD type file using Access as the front end and SQL Server 2005 as the back end database.

I use the following commands to import an Excel file into a SQL Server table.

ImportedFile = "U:\TestFile.XLS"
   
DoCmd.TransferSpreadsheet acImport, acSpreadsheetTypeExcel9, "dbo.tblGetDocumentAttributes", ImportedFile, True

I get the following error:

Run time error '3125'
" is not a valid name. Make sure that it does not include invalid characters or punctuation
and that it is not too long.

Do you know how I can resolve this error?
Is the problem the input data?

I provided 2 input records in the attached Excel file.

the SQL Server table fields are defined as follows:
 
Field Name                         Data Type
--------------                        -----------------
MailID                                nvarchar(255)
PartyID                              nvarchar(255)
Account                            nvarchar(255)
DocumentDate                 datetime
ScanDate                          datetime
DocumentType                 nvarchar(255)
Mailroom_Address1           nvarchar(255)
Mailroom_Address2           nvarchar(255)
Mailroom_Address3           nvarchar(255)
Mailroom_Address4           nvarchar(255)
Mailroom_Address5           nvarchar(255)
TestFile.xls