The best replacement for qaaws is live office.

The best alternatives to qaaws are rated as following:
★★★★★  live office
★★★  bi services
★★  biws

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Speaking about qaaws, one probably shouldn't forget about xcelsius.

Other search terms related to qaaws and their ratings are:
★★★★★ xcelsius
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Google Trends

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qaaws
live office
bi services