How to share only part of a file with a partner

The partner asked for their region. The export produces every region. Splitting it means opening the file, deleting the rows that are not theirs, checking you have not broken a formula, saving a new version, and naming it something you will regret in six months.

That is ten minutes. Every week. For each of eleven partners.

So it does not happen. The whole file goes, week after week, and a partner who needed one region can see every region’s margins, every account name, and the performance of the competitor sitting next to them in your channel.

Nobody sets out to misuse it. But a partner who can see your margin on their product line will negotiate differently. A reseller who can see another reseller’s numbers will ask why their terms are worse.

None of that is bad faith. It is the predictable result of giving somebody information and expecting them to un-know it.

The usual attempts at a fix are hiding and redacting: grey out the rows, black out the columns, protect the sheet with a password everybody in the industry knows.

All of those tell the recipient exactly where the interesting material is. A blacked-out figure is an invitation. A hidden sheet is two clicks from visible.

Sharing only part of a file means the rest is not in the file they receive. There is nothing to reveal, nothing to unhide, and nothing to be curious about, because the document they hold is genuinely the document you meant to send.

The practical shape is that your export job does not change. You produce the same file you always produced, on the same schedule.

What changes is that each partner’s access covers only the sheets, sections or slices you assigned them. Eleven partners, eleven views, one file, and no manual cutting on a Monday morning.

For files it is document protection doing the work. For scheduled feeds into a partner’s systems it is data protection. Most companies discover they need both, because the same numbers leave in both shapes.