First & foremost - which NAV version you use? As screenshot shows Classic Client it’s maximum 2009, maybe earlier.
It’s not easy at all to accomplish all the following for untrained people, but here’s the scenario in general with no details:
Create an intermediate table with all the fields you want to fill in the journal. You need to buy and include in your license additional TABLES + TableDesigner to be able to do that.
Transfer from EXCEL to that Table can be performed with that addon. Alternatively, a DataPort can be created, but that “eats” only TXT, CSV and like files.
Create a REPORT, which will transfer data from intermediate table to Journal (YES, Navision reports among other things can UPDATE data!) You need to buy and include in your license additional REPORTS + ReportDesigner to be able to do that.
Open the Journal / Batch, revise and post it.
In fact, no.
All the above requires NAV architecture knowledge and C/AL programming skills well above minimal, and for enduser it’s often cheaper and by no means faster to order the solution to Partner company, than buying additional tools and learn to do it themselves…
My apologies for postponed answer, I’m online here regularly, but rarely