[justlurking]

Why does everyone think they got a virus when their computer starts acting up, especially when It is just one program like Excel?

It is most likely a corrupted Excel, or a buggy worksheet macro, or just a combination of settings you didn’t expect.

[Smokin' Joe]

Why does everyone think they have a tumor when they get a nasty headache? Tumors aren't contagious, as far as we know, but computer viruses are...given a chance.

Macroviruses used to be the big thing, and Excel was particularly susceptible.

The laptop went into 'isolation' when the glitch was discovered, just because the 9 other computers around here are enough of a headache without 'sharing' problems.

I'm glad the problem appears to have been as you said, just a glitch, but under the circumstances, to not take precautions and assume the worst would be inviting disaster.