Cells spanning an entire page in height and text is vertically aligned

I have a word document which has a few tables and via programming in C# I am trying to add data underneath the tables. I have been able to find the tables within the document and add data to the table which works fine from a backend point of view in terms of data binding. The table structure, however, is not rendered properly as the each row spans an entire page and the cells in the row contains text which is also not horizontally aligned and has height spanning the entire page. Would someone be able to help here and suggest if this is a common issue or is there anything we might need to do in order to render the data properly in a tabular format? I am putting a screenshot of the generated document for reference.

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@nk2020 Could you please attach your input and output documents here for testing? We will check the issue and provide you more information.

Also, I would suggest you to consider using Mail Merge with regions or LINQ Reporting Engine for table creation. In this case you can configure a template and then fill it with data.