Sample.robot

*** Settings ***
Documentation    Suite description
Library  OperatingSystem
Suite Setup  Create File  ${test file path}
Suite Teardown  Remove file  ${test file path}

*** Variables ***

${test file path}=  ./test.txt

*** Test Cases ***
Find the file
    check file exists

Fill file with content
    append to file  ${test file path}  testing 123

*** Keywords ***
Check file exists
    should exist  ${test file path}