Microsoft Teams is a popular educational online communication and collaboration software. Microsoft Teams centralizes interactions, information, and applications. It lets students and instructors interact and exchange material in real time. Thus, this research examines how Microsoft Teams affects EFL Jordanian writers. Microsoft Teams' collaborative learning, feedback, and practice may enhance EFL Jordanians' writing abilities. The research divides students into control and experimental groupsObjective: In Jordan, Language learning and writing abilities are evolving in tandem with advancements in educational technology. Microsoft Teams, a popular online communication, and collaboration software is at the forefront of this transformation. Thus, this research examines how Microsoft Teams affects Jordanian EFL writers.Methods: Separating 30 EFL Jordanian students into two groups: a control group and an experimental group, the study employed (Vygotsky’s Sociocultural Theory and Davis’s Technology Acceptance Model (TAM). Then a Quasi-experimental study with a pre-test-post-test control group design has been conducted to compare the traditional teaching methods with Microsoft Teams-assisted collaborative writing.Results: The experimental group outperformed the control group in content and grammar. Microsoft Teams may help Jordanian EFL writers improve. The research reveals that Microsoft Teams might help EFL Jordanians write better. Thus, instructors should use Microsoft Teams to increase students' writing abilities. Technology-enhanced learning's long-term impacts on language competence require more study.Conclusions: In conclusion, this research examined how Microsoft Teams affects EFL Jordanians' writing. Microsoft Teams users had much better writing performance than non-users. The experimental group outperformed the control group in content and grammar. Microsoft Teams may help Jordanian EFL writers improve. Based on socio-cultural theory, the research stresses social interaction and collaborative learning in language acquisition. Socio-cultural theory supports student cooperation and communication using Microsoft Teams. Microsoft Teams' ability to allow students to interact with classmates and instructors and get feedback boosts writing skills.