You will need different versions of your resume for every position you apply even if the position you apply for is the same but the employers are different. (coverlettersandresume.com)
When you are filling out an online job application and need to cut & paste your resume, open up the text version of your resume in the text processor application. (careertrend.com)
, but ultimately you want to select a format that works best for you and your career history AND create multiple versions of your resume for different application scenarios. (careerimpressions.ca)