SMS Backup for iPhone - Export SMS to excel file using SMS Export Plus Posted 6/16/2014 at 16:40 UTC in iOS by email@example.com | Permalink | Tweet mTouchLabs announces SMS Export Plus 1.5, a new update release of their productivity app exclusively for iPhone and iPod touch. SMS Export Plus allows you to backup iMessages and SMS from your device to a Mac in .xls format. Using SMS Export Plus, you can archive and maintain records of all your messages at a single location in Excel file. Browse all backup messages in the .xls file very easily. You can filter messages by sender or sort messages by time and date.