Termius doesn’t allow importing data from a CSV file per se, but you can convert it to an ssh config file and then import it as ssh config.

To convert a CSV file, you need to ensure it's correctly formatted (see below).

Prepare the CSV File

A CSV file must accord with the following format:

• It is a plain text file named source.txt

• Each new line represents a new entry.

• The file follows this pattern, and blank fields are ignored: {Name},{Address},{Username}

Example of source.txt

Router,192.168.1.1,admin
Raspberry pi,192.168.1.15,pi
Home media center,192.168.1.16
Work,81.138.33.19

Convert CSV to SSH Config

Use the following command to convert your CSV file to ssh config:

awk -F',' \
  '{print "Host " $1 "\n\tHostname " $2; if ($3) { print "\tUser " $3 } }' \
  < source.txt > ssh_config

Example of ssh_config

Host Router
  Hostname 192.168.1.1
  User admin
Host Raspberry pi
  Hostname 192.168.1.15
  User pi
Host Home media center
  Hostname 192.168.1.16
Host Work
  Hostname 81.138.33.19