I have a file that is about 816 kB.

After linking 3 new worksheets (5 MB, 8 MB and 11 MB) with just a single cell (no formula, nothing) the original file grows from 816 kB to about 7 MB.

Also, I have observed that the 7 MB file with links opens noticeably slower than other files of similar size without links.

1. Why does the file grow so much if there is only a single cell linked?
2. Is there a way to reduce the growth of the file while linking?
3. Is there a way to improve load times of worksheet with links?

Hope you guys can help.