We use Excel files for many forms, but there are advantages to switching over to using XLM/XSL strategies. However, my users need to be able to easily open and modify the contents of many of these forms, and it seems that once an XLM file is created, you pretty much have to open the source file in a text editor and modify the individual nodes by hand. That's not only tedious but a real recipe for creating errors. A non-starter, as it were.
With an XLS-based form, the user can easily open the file in Excel and make any changes they like.
Is there any similar such application that can open an XLM file for convenient editing of data - preferably while displayed in the format defined by its associated XSL file?