Download OpalCalc 1.89 (x64 & x32) Free
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OpalCalc has been tested for viruses and malware
This download is 100% clean of viruses. It was tested with 24 different antivirus and anti-malware programs and was clean 100% of the time. View the full OpalCalc virus and malware test.
The file that was tested: OpalCalcSetup.exe.
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Powerful scratchpad-style math calculator: OpalCalc Windows 7.
Installing the OpalCalc download: Skytopia provides their software as a Windows Executable file and therefore installation is as easy as downloading the file OpalCalcSetup.exe and running it directly after retrieving it. We highly suggest using antivirus software before running *any* files from the Internet. The company hosting this file has a trust rating of 9/10.