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--- python:exelprocess [2020/01/19 15:37] – [Parse Shop.xls] admin
+++ python:exelprocess [2022/03/19 13:31] – [Error Parse UTF-8 file] admin
@@ Line 1: / Line 1: @@
 ====== Exel Processing ======
+===== Function in Exel =====
+Trước khi xử lý các hàm tìm kiếm Vlookup and Hlookup, If trong exel cần phải format dữ liệu và sort trước -> Lúc đó hàm xử lý mới chạy đúng
+VLOOKUP($B2,omni!$A$1:$C$4778,3,FALSE) -> Tìm chính xác nhờ tuỳ chọn **FALSE**
 ===== Install =====
   * Install on windows:<code bat>
@@ Line 11: / Line 14: @@
 pip install xlutils
 </code>
-===== using xlrd =====
+===== Using xlrd =====
 Basic APIs:
   * **xlrd.open_workbook('adminup/shop.xlsx')** return **xlrd.book.Book** object
@@ Line 95: / Line 98: @@
     print sheet_info.dump()
 </code>
-===== Parse xls file ====
+==== Parse xls file ====
 <code python>
 import xlrd
@@ Line 119: / Line 122: @@
 parsexls(constantsfile)
 </code>
+==== Error Parse UTF-8 file ====
+<code>
+UnicodeDecodeError: 'utf16' codec can't decode bytes in position 3438-3439: unexpected end of data
+</code> => Check exel format in encoding(not utf-8)(May be exel file was not stored as encoding utf-8, It can be saved as utf16 default encoding)
+You can debug for information:<code python>
+xlsfile = xlrd.open_workbook(filename,verbosity=3)
+</code>output:<code>
+BOF: op=0x0809 vers=0x0600 stream=0x0005 buildid=14420 buildyr=1997 -> BIFF80
+CODEPAGE: codepage 1200 -> encoding 'utf_16_le'
+DATEMODE: datemode 0
+</code> => default encoding: **'utf_16_le'**
+**Fix**: Lỗi do file exel, mở lại file exel và lưu lại sẽ hết lỗi
+===== Using xlwt =====