In UiPath, you can use the Add Data Table activity to create a new DataTable and add it to your project. The Add Data Table activity allows you to specify the columns and rows of the table and the data that each cell should contain.
To prevent a table from overlapping another table, you can use the Merge method of the DataTable class to combine the data from multiple tables into a single table. The Merge method allows you to specify the table or tables that you want to merge with the current table and the columns that you want to include in the merged table.