Excel file is a strange situation sometimes occurs，Man and multi-column fracture arrival of 會莫 name，Cause file jumped to dozens of MB，會發 raw cause not neat and clean，But it seems that every once in a while，Someone will launch an attack。
發生 此 problem when，Just select the extra columns，Deleted and then press the right，Progression 檔案 儲存，That will reduce the file size to the others。
Tips. Deleted must be stored，Otherwise, the field will always show the number of the original。
2023/02/17 Update
There are many blank columns as described above，I recently encountered a copy with a lot of blank columns，Also select the extra columns first，and press delete and save，If you reopen the file, it's still the same，Then please switch to "Page Break Preview" in "View"，Switch back to "Standard Mode"。
