Hi all, I recently updated a workbook that is saved as an xlsx (used to be xls) and has multiple worksheets in it. This file as has cells "copied as links" to other workbooks on my network. Prior to my update, my boss could look at everything on his iPhone and iPad no problem. Since my update, he can open the workbooks and view the current sheet, but is unable to switch between sheets. When a tab is touched, nothing happens. There are no error codes, warnings, or even slow response when opening the file or viewing it. The file is 1.3KB, but we are able to look at things up to 4KB without problems otherwise.

Other than adding external links, there is some basic formatting, conditional formatting, and data validations both in list form and cell formatting changes. There used to be a new book created for each month (28-31 rows for days). This new file is simply a full year, 365 days, of rows.

Anyone else had this problem?