Cover a Class in Seconds
A teacher calls in sick — REWO finds a free colleague and fills the gap before the first bell, instead of you doing it by hand.
Actively maintained
Stop Losing Your Mornings to Teacher Absences.
REWO automatically reassigns classes the moment a teacher calls in absent, so you're not doing it by hand at 7.30am. Built for schools in Sri Lanka, and set up to follow the exact rules your ministry already expects you to follow.
Works on 64-bit Windows · installs in about 5 seconds · scanned and safe to run.
Verify Your Download
After downloading, confirm the file hasn't been altered. Run this in PowerShell:
Get-FileHash REWO.zip -Algorithm SHA256
The result should match:
6B5D0A92E180EE1D88E1F61962AF0C02FFF86070C616189CC0987AC8ED943FC2
Built with input from school administrators & legal advisors
Your data stays on your school's own computer
Aligned with current Ministry of Education circulars
Everything a Vice-Principal Needs,
Nothing They Don't.
REWO takes the daily scramble of covering absent teachers off your plate, while keeping every assignment on the record and defensible.
Stays Within the Rules
Every assignment follows the same circulars and regulations your ministry already holds you to, so you're covered if anyone asks questions later.
Handles Every Kind of Leave
Half-days, short leave, special leave — REWO tells the difference automatically, so you don't have to remember which rule applies to which teacher.
No More "Why Always Me?"
Substitution duty gets spread evenly across staff, tracked automatically, so no teacher can say they're being singled out.
Built With Real Schools,
Not in a Lab
Designed with input from legal and administration experts, then tested in actual public schools before release.
One Small Fee, No Surprises Later
A low annual fee covers the software, ongoing maintenance, and updates whenever the rules change — nothing extra to pay partway through the year.
See It, Before You Install It.
What You'll Need to Run It?
OPERATING SYSTEM
Windows 11 (64-bit architecture)
MEMORY (RAM)
8 GB Minimum Requirement
SOFTWARE DEPENDENCY
Microsoft Office 2021 or subsequent iterations
STORAGE CAPACITY
100 MB Available Local Disk Space
Less Than the Cost of One Substitute's Lunch!
Standard Annual License
LKR 1,000 / year
That works out to under LKR 3 a day — less than the cost of a cup of tea.
- Full access for one year
- Your data stays on your own computer
- One installation, one school
- Free updates whenever ministry rules change
Questions before you buy? Talk to us or read our Refund & Return Policy.
Customer Reviews
What our customers are saying...
REWO made teacher and class allocation so simple. We saved hours setting up our schedules this term.
Ranjith Perera
Allocating rooms and resources used to be hard. REWO fixed it in a few clicks.
Kumari Fernando
REWO makes staff allocation fast and fair. It eliminated all our scheduling conflicts this year.
Shani Wijesinghe
Common Questions
Do we get an invoice or receipt?
Yes — every payment through our licensing page can be issued as a proper invoice for your school's records. Ask us via WhatsApp or email if you need it addressed to a specific department.
Can we pay by bank transfer instead of card?
Get in touch on WhatsApp or email support@exceldays.lk and we'll arrange the payment method that works for your school's procurement process.
What happens to our data when the license year ends?
Your data always stays on your own school computer — REWO doesn't store it on our servers. Renewing simply restores full access to the software.
Can I try REWO before purchasing a license?
Message us and we'll walk you through a live demo using your own school's timetable structure, so you can see exactly how it behaves before you commit.
Is the download safe to run on a school computer?
Yes. The installer is a standard Windows client with no bundled third-party software. If your school's IT policy requires a signed installer or a security review before approval, let us know and we'll provide it.
Outside Sri Lanka? We Can Still Help.
REWO is built around Sri Lankan schools, but works for any school running an 8-to-9 period day. Get in touch and we'll tell you honestly if it's a fit before you buy.