A non-transitory computer-readable recording medium records a specifying program for causing a computer to execute processing including: receiving a first file; acquiring information indicating a correspondence relationship between an item included in the first file and an item included in a second file; acquiring an item value associated with identification information of the received first file with reference to a storage that stores an item value associated with a specific item included in a file in association with the identification information of the file; comparing the item value associated with the specific item among the items included in the received first file with the acquired item value; and specifying a target item associated with an item value associated with a second item included in the received first file among items included in the second file on the basis of the comparison result and the acquired information.