I wanted to just post this CorelDRAW forum link as a comment, but I don't have enough rep:
Any Faster Way to Auto-Numbering Columns & Rows on One page Only?
The macro (BDTableTextControl_v2.gms
) posted by Brian in that thread gets close to achieving what you're looking to do.
To make this more like a legitimate answer, here are the steps I took to install, run, and use the macro:
Save the macro file to your desired location on your desktop (right-click → Save As).
(I just left it in my Downloads folder as I couldn't get it to work from the
"correct" AppData
folder.)
Open the Macro Manager (Alt+Shift+F11 or Tools → Macros > Macro Manager).
Click Load and select the BDTableTextControl_v2.gms
file. The macro should now appear in the Visual Basic for Applications tree within the Macro Manager.
Double-click BDTableTextControl from the Macro Manager to run the macro.

In the macro dialog, set your desired starting number.

In the table, select the cells where you want the numbers to appear

Click the "Add Numbers" button.

Unfortunately, it's not an automated thing, so you'll likely have to run the macro again for each of your 100 pages, but at least it's not having to hand type each number on every row. Hope this helps.