o·ver·write /ˌəʊvəˈraɪt $ ˌoʊ-/ BrE AmE verb ( past tense overwrote /-ˈrəʊt $ -ˈroʊt/, past participle overwritten /-ˈrɪtn/) [transitive]
to replace the information in a computer document with new information from another document:
Do you want to overwrite the file?