diff --git a/backend/apps/datasource/api/datasource.py b/backend/apps/datasource/api/datasource.py
index 1eff12f9..52b515b7 100644
--- a/backend/apps/datasource/api/datasource.py
+++ b/backend/apps/datasource/api/datasource.py
@@ -115,7 +115,8 @@ async def upload_excel(session: SessionDep, file: UploadFile = File(...)):
         create_table(conn, tableName, fields)
 
         data = [
-            {df.columns[i]: int(row[i]) if "int" in str(df.dtypes[i]) else row[i] for i in range(len(row))}
+            {df.columns[i]: None if pd.isna(row[i]) else (int(row[i]) if "int" in str(df.dtypes[i]) else row[i])
+             for i in range(len(row))}
             for row in df.values
         ]
         # insert data
@@ -135,7 +136,8 @@ async def upload_excel(session: SessionDep, file: UploadFile = File(...)):
             create_table(conn, tableName, fields)
 
             data = [
-                {df.columns[i]: int(row[i]) if "int" in str(df.dtypes[i]) else row[i] for i in range(len(row))}
+                {df.columns[i]: None if pd.isna(row[i]) else (int(row[i]) if "int" in str(df.dtypes[i]) else row[i])
+                 for i in range(len(row))}
                 for row in df.values
             ]
             # insert data
diff --git a/frontend/src/views/ds/form.vue b/frontend/src/views/ds/form.vue
index 24774eb3..30da7e49 100644
--- a/frontend/src/views/ds/form.vue
+++ b/frontend/src/views/ds/form.vue
@@ -62,7 +62,7 @@
               :before-upload="beforeUpload"
               :on-success="onSuccess"
             >
-              <el-button>Upload</el-button>
+              <el-button :disabled="!isCreate">Upload</el-button>
               <template #tip>
                 <div class="el-upload__tip">
                   Only support .xls, .xlsx, .csv, size less than 50MB.
diff --git a/frontend/src/views/ds/index.vue b/frontend/src/views/ds/index.vue
index 61de0a30..c6d6ad6c 100644
--- a/frontend/src/views/ds/index.vue
+++ b/frontend/src/views/ds/index.vue
@@ -27,8 +27,7 @@
           <div class="connection-actions">
             <el-button class="action-btn" circle @click="getTables(ds.id, ds.name)" :icon="List"/>
             <el-button class="action-btn" circle @click="editTables(ds)" :icon="CreditCard"/>
-            <el-button v-if="ds.type !== 'excel'" type="primary" class="action-btn" circle @click="editDs(ds)"
-                       :icon="IconOpeEdit"/>
+            <el-button type="primary" class="action-btn" circle @click="editDs(ds)" :icon="IconOpeEdit"/>
             <el-button type="danger" class="action-btn" circle @click="deleteDs(ds)" :icon="IconOpeDelete"/>
           </div>
         </DatasourceItemCard>