hot fix #1

internal/controllers/export_helper.go

@@ -4,11 +4,14 @@ import (
 	"encoding/csv"
 	"encoding/json"
 	"fmt"
+	"path/filepath"
 	"reflect"
 	"strconv"
+	"strings"
 	"time"
 
 	"github.com/gin-gonic/gin"
+	"github.com/xuri/excelize/v2"
 )
 
 // ExportHelper provides export utilities for CSV, JSON, etc.
@@ -111,7 +114,10 @@ func (eh *ExportHelper) formatFieldValue(v reflect.Value) string {
 	}
 }
 
-// ImportFromCSV imports data from CSV file
+// ImportFromCSV imports tabular data from an uploaded file.
+// It supports traditional CSV files as well as Excel workbooks (.xlsx).
+// The caller always receives a [][]string where the first row is treated
+// as the header row by higher-level import functions.
 func (eh *ExportHelper) ImportFromCSV(c *gin.Context, formFieldName string) ([][]string, error) {
 	file, err := c.FormFile(formFieldName)
 	if err != nil {
@@ -124,6 +130,28 @@ func (eh *ExportHelper) ImportFromCSV(c *gin.Context, formFieldName string) ([][
 	}
 	defer f.Close()
 
+	ext := strings.ToLower(filepath.Ext(file.Filename))
+	if ext == ".xlsx" {
+		wb, err := excelize.OpenReader(f)
+		if err != nil {
+			return nil, err
+		}
+		defer func() {
+			_ = wb.Close()
+		}()
+
+		sheets := wb.GetSheetList()
+		if len(sheets) == 0 {
+			return nil, fmt.Errorf("xlsx file has no sheets")
+		}
+
+		rows, err := wb.GetRows(sheets[0])
+		if err != nil {
+			return nil, err
+		}
+		return rows, nil
+	}
+
 	reader := csv.NewReader(f)
 	records, err := reader.ReadAll()
 	if err != nil {