Excel File Takes Long Time To Save

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Excel takes about 10 minutes in the saving process. When I say 10 minutes, I mean, the excel screen freezes (says not responding) for about 10 minutes, then it actually saves at the very end in the normal time any other file would take as you watch the progress bar go forward.

I know many of the common answers and have tried. reducing the calculation time (which in turn reduces the saving time).

But in my circumstance, the calculation takes a very reasonable amount of time, and you see the progress % going forward.

- I would say I have about 2000 rows, and 15 columns.
- They have sumifs formulas.
- They link to a different workbook.
- The workbook I am working on saves to the network
- the source of my sumifs are also in the same folder on the network
- the recalculation takes about 10 seconds at most
- i have turned off recalculate before saving, it is all on manual calcs

- when i hit save, there are no calcs being performed
- there are no macros in the workbook
- there are only about 2 names in the name manager
- then it freezes for about 10 minutes.
- then the progress bar starts moving then it saves.

What is it doing in those 10 minutes?

1 more item to note, when I break the links to the workbook and thereby removing the sumifs formulas, its a snap.

Why does the existence of the sumifs extend saving time? I would completely understand if it elongated calculation time, but if calculation is off, then why does it even worry about it when saving?