Checking a document for spelling errors is not one of my favorite tasks. I usually receive a lot of false hits, thanks to the nature of the technical manuals in my current job. For example, some manuals include a long series of part numbers that would never appear in the official dictionary used by the spell checker. Clicking the Ignore All button helps, but it can still feel like wading through a swamp.
Recently I have changed my overall approach. Instead of waiting until a document is nearly finished, I look for errors throughout the process of working on the document. This approach requires that Arbortext Editor’s preferences be set to check spelling as you type.
As you work on a document, watch out for words that have red squiggly lines beneath them. Arbortext uses these lines to highlight possible errors.
When you right-click a word that has been highlighted, a context menu appears with spelling suggestions (if available) and various spell check options, such as Ignore All and Add to Dictionary.




Thank you for useful information!
You should also try this online spell check tool.