How to save email:password in txt file and continue to next line?

[blackmonitor]

I am having problems finding the way to set appendlines to each line.
Right now it is set up to save email:password but after running debug it shows:

email
:password

How could I make this as one line

email:password

and when the next debug run it will continue to the next line adding each run on another line in text file?
Currently my macro is set as:
{-File.AppendString-|-C:\Users\user\Desktop\Zennolab Files\project6\accounts.txt
-|-{-FieldData.FieldData-|-●7●3●4●2●2●6●-|-vc-6183-}:{-FieldData.FieldData-|-●7●3●4●2●2●6●-|-vc-2113-}-|--|-true-}

Thanks

 

[bigcajones]

Macro should be:

{-File.AppendString-|-C:\Users\user\Desktop\Zennolab Files\project6\accounts.txt
-|-{-FieldData.FieldData-|-●7●3●4●2●2●6●-|-vc-6183-}:{-FieldData.FieldData-|-●7●3●4●2●2●6●-|-vc-2113-}-|-true-}

 

[blackmonitor]

What do I need to do in macro?