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Spreadsheets

secp256k1 for bitcoin in excel, no macros, no add-ins, no arrays
Expandable chunk spreadsheet, no macros, no add-ins, no arrays

SHA256

Two chunk spreadsheet, no macros, no add-ins, no arrays

RIPEMD-160

keys and addresses

24 word private key conversion spreadsheet, WIF, PKH, BIP39 seed phrase, P2PKH P2WPKH (bech32) address spreadsheet

QR CODES

convert data to qr code without internet connection
version 2, 5, 15, byte mode, L,M,Q & H EC, mask 0
no macros, no array formulas, no add-ins, 7.8MB
Lite QR code generator for Versions 2 & 5 (25x25 & 37x37)
Low EC, byte mode, mask 0
no macros, no array formulas, no add-ins, <1MB
SeedSigner CompactQR
SeedSigner CompactQR generator
no macros, no array formulas, no add-ins, <1MB
business evaluation spreadsheet:
bitcoin mining vs. purchase, version.9k
bitcoin magazine dp methodology
PL spreadsheet for mining enterprises
track daily, monthly, annual and life-to-date performance
pool mining or independent miners
btc live pricing arb-and-trade blotter 
multi-platform, multi-currency spreadsheet
256bit binary <==> decimal <==> hexadecimal
conversion spreadsheet
one-on-one training for excel
be more efficient, speed up your work
contact us for pricing—BTC only
decimal multiplication 256 digit numbers - expandable
excel simple demo spreadsheet
binary addition and subtraction - expandable demo spreadsheet
nostr nsec, npub generator and converter, bech32, hex and decimal
12th and 24th Seed Phrase word generator, no macros no arrays
on-chain and off-chain donations

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