Hi,
According to your description, my understanding is that you want to use Word 2007 to open LST files and save it as DOCX format? Am I right? Do you mind telling us how did you create/get the LST files? As far as I know, LST are plain text files which can
be viewed and edited with a text editor. If the file cannot open in a text editor, it is most likely saved in a binary format that can only be opened by the program that created the file.
As a workaround, please try to convert the LST files to rich text format first, and then open it with Word 2007.
If I misunderstood something, please feel free let me know.
Hope it's helpful.
Regards,
George Zhao
TechNet Community Support
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