LO base: How do I tell when pasting data into a table is complete

I’m using LO 6.2.8.2 64bit. I recently had to paste about 5,000 entires into a table from a spreadsheet. It worked OK but how do I tell when the import is complete, is there a progress monitor? The first time I tried the import I didn’t leave it long enough, when I tried to open the table the program stopped responding. All I could do the second time was watch the disc activity light on my PC and wait for the frenzied acvtivity to stop. Is this the only monitoring system?

Thanks for any help
Chris