I'm not sure you're going to have a great time trying to read values into LabVIEW from Word using the Report Generation Toolkit.
It appears to be fairly strongly biased towards writing Word documents, generating, etc.
The toolkit is based around the ActiveX reference to the Word application, so you might be able to look inside the RGT VIs and create your own tools to read documents, but I don't know if it will be easy/possible and I'm sure it won't be particularly pleasant.
Why do you need to do this? Perhaps there's another way...
Thank you for the information but can you suggest me any other methods for this?
Well, I suppose I'd still want to know why you're doing this to better understand the problem, but a first guess might be - where did the data originally come from (before the Word document)?
Can you access the data sources for the tables, graphs etc?
How many files do you need to process? Can you export the data in a more readable form?