Large one page reports are not exporting to Excel in its entirety. Artificial pages are applied and the report does export partially. The reports are generating 2MM lines daily and the end user utilizes the data for historical purposes. Web Viewer is able to do a complete save to text, however.
Output Management Web Viewer 12.1
Excel limitations, memory on desktop machines
If Web Viewer is able to do a complete save to text, and Excel is unable to import that save file, then this is not a Web Viewer problem. . If memory constraints are responsible for the inability for Excel to load load the complete save file, then the memory you are most concerned about is on the users desktop machine and NOT on the server where Web Viewer is hosted.