diff --git a/src/utils/excel.util.ts b/src/utils/excel.util.ts
index efc1d2f..c25740d 100644
--- a/src/utils/excel.util.ts
+++ b/src/utils/excel.util.ts
@@ -7,7 +7,7 @@ export function excelToJson(filePath: string) {
     throw new Error('excelToJson: no sheet found')
   }
   const sheet = workSheetsFromFile[0]
-  const header = sheet.data[0] as string[]
+  const header = (sheet.data[0] as string[]).map(item => item.toLowerCase())
   let arr = []
   for (let i = 1, l = sheet.data.length; i < l; i++) {
     let row = sheet.data[i] as []