import about 300 thousand numbers in android
I think i Solved it myself
1-I used MS Excel to change the format from TXT to CSV
2-And then I used Contacts from Windows to import the CSV
AND then exported them to a folder that contains 300,000 contacts of VCARD or VCF files
you can find it in here (C:\Users\USERNAME\Contacts)
3-AND using CMD to export them all to ONE VCF.
The Code:

copy *.vcf combined.vcf

4-And then used ADB to connect to nox.
The Commands:

$ adb connect 127.0.0.1:62001
connected to 127.0.0.1:62001
$ adb devices
List of devices attached
127.0.0.1:62001 device

5-Copying the combined file into Nox Sdcard

$ adb push contacts.vcf /sdcard/contacts.vcf
$ adb sync

6-And then using contacts app from NOX to import the file from sdcard.