Extremely buggy

I use another program to export and this one to import. I have seen it work once on a csv of about 100 lines. My file is 2500 lines and it crashes. I have shortened it multiple times and all the way down to 30lines each and it still crashes after spending time setting all the inputs. If it worked, this would be a great app but way too buggy for having to spend money. Also, if they could automate inputs somehow - like linking from excel since Microsoft office is all cloud based now, that would be awesome! If anyone knows of any apps that do this, please post

JRSampdon about Contacts In : Import CSV & Manage Groups, v5.8