Orijinal gönderinin sahibi: Eric Viitala ,
Check to ensure that both you and your client are using the same version of Office. All MS Office programs are able to save files that can be opened by older versions of Office. If your client has an older version, then save your Excel file as one that is compatible with older versions. If you are having trouble opening your client's file, check add ons and macros as instructed by earlier commentors. Good luck!