how to view word file in navision.

I am not sure how and where you are trying to do this, but something like this should work :

==============================
CREATE(WordApp);
WordApp.Visible(TRUE);
FileName := 'Path to the file';
WordDoc := WordApp.Documents.Open(FileName);
WordDoc := WordApp.ActiveDocument;
WordApp.PrintOut(); // If you want to print it directly after
===============================

Good luck

Steeve Le Provost
http://www.steeve-leprovost.fr.cx

sorry, this works only with exporting.

So on export of the blob you can store the BLOB in environ('Temp') + '\' + YourFilename + '.' + FilenameExtension.
To know the File Extension you can save this extension in a separate field when you import the file.

For example:

FileDialog.DialogTitle := 'FilePath...';
FileDialog.Filter := '';
FileDialog.InitDir('C:\');

FileDialog.Filter('All (*.*)|*.*');
FileDialog.ShowOpen();
FileDialog.CancelError(FALSE);
IF (FileDialog.FileName <> '') THEN BEGIN
  "Document Template".IMPORT(FileDialog.FileName,FALSE);

  i := STRLEN(FileDialog.FileName);
  WHILE FileDialog.FileName[i] <> '.' DO
    i -= 1;

  "File Extension" := COPYSTR(FileDialog.FileName,i,STRLEN(FileDialog.FileName)-i+1);
  
y := i;

  WHILE FileDialog.FileName[i] <> '\' DO
    i -= 1;

  Description := COPYSTR(FileDialog.FileName,i+1,y-i-1);
  CurrForm.SAVERECORD;
END;

Regards